diff --git a/extensions/fablabchemnitz/box_maker_living_hinge/box_maker_living_hinge.py b/extensions/fablabchemnitz/box_maker_living_hinge/box_maker_living_hinge.py
index cd32289..614c611 100644
--- a/extensions/fablabchemnitz/box_maker_living_hinge/box_maker_living_hinge.py
+++ b/extensions/fablabchemnitz/box_maker_living_hinge/box_maker_living_hinge.py
@@ -30,10 +30,9 @@ import math
 class BoxMakerLivingHinge(inkex.EffectExtension):
     
     def drawS(self, XYstring):         # Draw lines from a list
-      name='part'
       style = { 'stroke': '#000000', 'stroke-width': self.svg.unittouu('1px'), 'fill': 'none' }
-      drw = {'style': str(inkex.Style(style)),inkex.addNS('label','inkscape'):name,'d':XYstring}
-      etree.SubElement(parent, inkex.addNS('path','svg'), drw )
+      drw = {'style': str(inkex.Style(style)), 'd':XYstring}
+      etree.SubElement(parent, inkex.addNS('path','svg'), drw)
       return
 
     def draw_SVG_ellipse(self, centerx, centery, radiusx, radiusy, start_end):
@@ -190,21 +189,21 @@ class BoxMakerLivingHinge(inkex.EffectExtension):
 
     
     def add_arguments(self, pars):
-        pars.add_argument('--unit',default='mm',help='Measure Units')
-        pars.add_argument('--inside',type=int,default=0,help='Int/Ext Dimension')
-        pars.add_argument('--length',type=float,default=100,help='Length of Box')
-        pars.add_argument('--width',type=float,default=100,help='Width of Box')
-        pars.add_argument('--height',type=float,default=100,help='Height of Box')
-        pars.add_argument('--tab',type=float,default=25,help='Nominal Tab Width')
-        pars.add_argument('--equal',type=int,default=0,help='Equal/Prop Tabs')
-        pars.add_argument('--thickness',type=float,default=10,help='Thickness of Material')
-        pars.add_argument('--kerf',type=float,default=0.5,help='Kerf (width) of cut')
-        pars.add_argument('--clearance',type=float,default=0.01,help='Clearance of joints')
-        pars.add_argument('--style',type=int,default=25,help='Layout/Style')
-        pars.add_argument('--spacing',type=float,default=25,help='Part Spacing')
-        pars.add_argument('--hingeOpt',type=int,default=0,help='Hinge type')
-        pars.add_argument('--hingeThick',type=float,default=0,help='Hinge thickness')
-        pars.add_argument('--thumbTab',default=0,help='Add a thumb tab')
+        pars.add_argument('--unit', default='mm', help='Measure Units')
+        pars.add_argument('--inside', type=int, default=0, help='Int/Ext Dimension')
+        pars.add_argument('--length', type=float, default=100, help='Length of Box')
+        pars.add_argument('--width', type=float, default=100, help='Width of Box')
+        pars.add_argument('--height', type=float, default=100, help='Height of Box')
+        pars.add_argument('--tab', type=float, default=25, help='Nominal Tab Width')
+        pars.add_argument('--equal', type=int, default=0, help='Equal/Prop Tabs')
+        pars.add_argument('--thickness', type=float, default=10, help='Thickness of Material')
+        pars.add_argument('--kerf', type=float, default=0.5, help='Kerf (width) of cut')
+        pars.add_argument('--clearance', type=float, default=0.01, help='Clearance of joints')
+        pars.add_argument('--style', type=int, default=25, help='Layout/Style')
+        pars.add_argument('--spacing', type=float, default=25, help='Part Spacing')
+        pars.add_argument('--hingeOpt', type=int, default=0, help='Hinge type')
+        pars.add_argument('--hingeThick', type=float, default=0, help='Hinge thickness')
+        pars.add_argument('--thumbTab', default=0, help='Add a thumb tab')
         		
     """
     Traditional multi-slit design.
@@ -336,23 +335,18 @@ class BoxMakerLivingHinge(inkex.EffectExtension):
             self.draw_SVG_line(Ex, Sy, Ex, Ey - space, grp)
 
     def effect(self):
-        global parent,nomTab,equalTabs,thickness,correction, Z, unit 
+        global parent, nomTab, equalTabs, thickness, correction, Z, unit 
         
-            # Get access to main SVG document element and get its dimensions.
+        # Get access to main SVG document element and get its dimensions.
         svg = self.document.getroot()
         
-            # Get the attibutes:
+        # Get the attibutes:
         widthDoc  = self.svg.unittouu(svg.get('width'))
         heightDoc = self.svg.unittouu(svg.get('height'))
 
-            # Create a new layer.
-        layer = etree.SubElement(svg, 'g')
-        layer.set(inkex.addNS('label', 'inkscape'), 'newlayer')
-        layer.set(inkex.addNS('groupmode', 'inkscape'), 'layer')
+        parent = etree.SubElement(self.svg.get_current_layer(), 'g')
         
-        parent=self.svg.get_current_layer()
-        
-            # Get script's option values.
+        # Get script's option values.
         unit=self.options.unit
         inside=self.options.inside
         X = self.svg.unittouu( str(self.options.length)  + unit )
diff --git a/extensions/fablabchemnitz/boxes.py/ABox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/ABox-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/ABox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/AgricolaInsert-thumb.jpg b/extensions/fablabchemnitz/boxes.py/AgricolaInsert-thumb.jpg
index 1223555..b2770e5 100644
Binary files a/extensions/fablabchemnitz/boxes.py/AgricolaInsert-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/AgricolaInsert-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/AllEdges-thumb.jpg b/extensions/fablabchemnitz/boxes.py/AllEdges-thumb.jpg
index f9bfaea..ecf8ef7 100644
Binary files a/extensions/fablabchemnitz/boxes.py/AllEdges-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/AllEdges-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/AngledBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/AngledBox-thumb.jpg
index f5361cc..d91c49a 100644
Binary files a/extensions/fablabchemnitz/boxes.py/AngledBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/AngledBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/AngledCutJig-thumb.jpg b/extensions/fablabchemnitz/boxes.py/AngledCutJig-thumb.jpg
index 8174418..ce8f171 100644
Binary files a/extensions/fablabchemnitz/boxes.py/AngledCutJig-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/AngledCutJig-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Atreus21-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Atreus21-thumb.jpg
index 9bafb98..aec4159 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Atreus21-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Atreus21-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BasedBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BasedBox-thumb.jpg
index d6f9fa8..5e04f19 100644
Binary files a/extensions/fablabchemnitz/boxes.py/BasedBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/BasedBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BayonetBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BayonetBox-thumb.jpg
index f806902..8dcb20f 100644
Binary files a/extensions/fablabchemnitz/boxes.py/BayonetBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/BayonetBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BinTray-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BinTray-thumb.jpg
index 1951afe..3e4e9f6 100644
Binary files a/extensions/fablabchemnitz/boxes.py/BinTray-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/BinTray-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BirdHouse-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BirdHouse-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/BirdHouse-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BottleTag-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BottleTag-thumb.jpg
new file mode 100644
index 0000000..9797a87
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/BottleTag-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BreadBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BreadBox-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/BreadBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/BurnTest-thumb.jpg b/extensions/fablabchemnitz/boxes.py/BurnTest-thumb.jpg
index a77d9c2..54c25b2 100644
Binary files a/extensions/fablabchemnitz/boxes.py/BurnTest-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/BurnTest-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CanStorage-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CanStorage-thumb.jpg
new file mode 100644
index 0000000..04ec4eb
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/CanStorage-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CanStorageAA-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CanStorageAA-thumb.jpg
new file mode 100644
index 0000000..49e9c6d
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/CanStorageAA-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CardBox-detail-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CardBox-detail-thumb.jpg
index 41ba16d..5741850 100644
Binary files a/extensions/fablabchemnitz/boxes.py/CardBox-detail-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/CardBox-detail-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CardBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CardBox-thumb.jpg
index 6bdf7e6..b13a9d5 100644
Binary files a/extensions/fablabchemnitz/boxes.py/CardBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/CardBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CardHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CardHolder-thumb.jpg
new file mode 100644
index 0000000..c42388a
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/CardHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Castle-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Castle-thumb.jpg
index 7ca2a4d..db09017 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Castle-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Castle-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/ClosedBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/ClosedBox-thumb.jpg
index d588f6f..91f2ca1 100644
Binary files a/extensions/fablabchemnitz/boxes.py/ClosedBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/ClosedBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CoffeeCapsuleHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CoffeeCapsuleHolder-thumb.jpg
index 5360586..dc30882 100644
Binary files a/extensions/fablabchemnitz/boxes.py/CoffeeCapsuleHolder-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/CoffeeCapsuleHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/CoinDisplay-thumb.jpg b/extensions/fablabchemnitz/boxes.py/CoinDisplay-thumb.jpg
new file mode 100644
index 0000000..27ddb85
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/CoinDisplay-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Console-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Console-thumb.jpg
index c035194..d41fbb7 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Console-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Console-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Console2-backwall-detail-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Console2-backwall-detail-thumb.jpg
index 2a1991c..994c280 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Console2-backwall-detail-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Console2-backwall-detail-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Console2-panel-detail-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Console2-panel-detail-thumb.jpg
index be07af7..9768daf 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Console2-panel-detail-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Console2-panel-detail-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Console2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Console2-thumb.jpg
index a0ae789..d2dcfca 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Console2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Console2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DiceBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DiceBox-thumb.jpg
new file mode 100644
index 0000000..59a130f
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/DiceBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DiscRack-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DiscRack-thumb.jpg
index 92fc752..4e283db 100644
Binary files a/extensions/fablabchemnitz/boxes.py/DiscRack-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/DiscRack-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Dispenser-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Dispenser-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/Dispenser-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DisplayCase-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DisplayCase-thumb.jpg
index efdb44a..8666518 100644
Binary files a/extensions/fablabchemnitz/boxes.py/DisplayCase-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/DisplayCase-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DisplayShelf-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DisplayShelf-thumb.jpg
index 4e736c0..aea03b4 100644
Binary files a/extensions/fablabchemnitz/boxes.py/DisplayShelf-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/DisplayShelf-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DividerTray-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DividerTray-thumb.jpg
index 4313e3e..4e73af4 100644
Binary files a/extensions/fablabchemnitz/boxes.py/DividerTray-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/DividerTray-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DoubleFlexDoorBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DoubleFlexDoorBox-thumb.jpg
index 0ab5855..da223c8 100644
Binary files a/extensions/fablabchemnitz/boxes.py/DoubleFlexDoorBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/DoubleFlexDoorBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-1-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-1-thumb.jpg
new file mode 100644
index 0000000..12c909e
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-1-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-2-thumb.jpg
new file mode 100644
index 0000000..cae3c57
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-3-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-3-thumb.jpg
new file mode 100644
index 0000000..d11d271
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-3-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-4-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-4-thumb.jpg
new file mode 100644
index 0000000..5ff8f1f
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/DrillStand-assembly-4-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/DrillStand-thumb.jpg b/extensions/fablabchemnitz/boxes.py/DrillStand-thumb.jpg
index df59a05..efc8176 100644
Binary files a/extensions/fablabchemnitz/boxes.py/DrillStand-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/DrillStand-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/ElectronicsBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/ElectronicsBox-thumb.jpg
index 7e6bcee..b627122 100644
Binary files a/extensions/fablabchemnitz/boxes.py/ElectronicsBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/ElectronicsBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/EuroRackSkiff-thumb.jpg b/extensions/fablabchemnitz/boxes.py/EuroRackSkiff-thumb.jpg
index e14e88d..7e1c9f8 100644
Binary files a/extensions/fablabchemnitz/boxes.py/EuroRackSkiff-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/EuroRackSkiff-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/FillTest-thumb.jpg b/extensions/fablabchemnitz/boxes.py/FillTest-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/FillTest-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/FlexBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/FlexBox-thumb.jpg
index 92cb58b..9349fc7 100644
Binary files a/extensions/fablabchemnitz/boxes.py/FlexBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/FlexBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/FlexBox2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/FlexBox2-thumb.jpg
index 70037b5..866a749 100644
Binary files a/extensions/fablabchemnitz/boxes.py/FlexBox2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/FlexBox2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/FlexBox3-thumb.jpg b/extensions/fablabchemnitz/boxes.py/FlexBox3-thumb.jpg
index 11ec688..71fd8d0 100644
Binary files a/extensions/fablabchemnitz/boxes.py/FlexBox3-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/FlexBox3-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/FlexBox4-thumb.jpg b/extensions/fablabchemnitz/boxes.py/FlexBox4-thumb.jpg
index 1b4a037..e455b64 100644
Binary files a/extensions/fablabchemnitz/boxes.py/FlexBox4-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/FlexBox4-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/FlexTest-thumb.jpg b/extensions/fablabchemnitz/boxes.py/FlexTest-thumb.jpg
index 20079fd..543ccba 100644
Binary files a/extensions/fablabchemnitz/boxes.py/FlexTest-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/FlexTest-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Folder-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Folder-2-thumb.jpg
index eb53412..7967b07 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Folder-2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Folder-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Folder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Folder-thumb.jpg
index 09790f1..f23c221 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Folder-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Folder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HalfBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HalfBox-thumb.jpg
new file mode 100644
index 0000000..a74f7c2
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/HalfBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HalfBox_AngleJig_usage-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HalfBox_AngleJig_usage-thumb.jpg
new file mode 100644
index 0000000..f1c08a1
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/HalfBox_AngleJig_usage-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HalfBox_Bookend_usage-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HalfBox_Bookend_usage-thumb.jpg
new file mode 100644
index 0000000..f5ab223
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/HalfBox_Bookend_usage-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HalfBox_Shelf_usage-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HalfBox_Shelf_usage-thumb.jpg
new file mode 100644
index 0000000..44844a2
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/HalfBox_Shelf_usage-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HeartBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HeartBox-thumb.jpg
index 3892139..c5819e3 100644
Binary files a/extensions/fablabchemnitz/boxes.py/HeartBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/HeartBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HingeBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HingeBox-thumb.jpg
index 5367d10..0ea777b 100644
Binary files a/extensions/fablabchemnitz/boxes.py/HingeBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/HingeBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/HolePattern-thumb.jpg b/extensions/fablabchemnitz/boxes.py/HolePattern-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/HolePattern-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/IntegratedHingeBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/IntegratedHingeBox-thumb.jpg
index 0a6ac52..2312f7c 100644
Binary files a/extensions/fablabchemnitz/boxes.py/IntegratedHingeBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/IntegratedHingeBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/JointPanel-thumb.jpg b/extensions/fablabchemnitz/boxes.py/JointPanel-thumb.jpg
new file mode 100644
index 0000000..0fabee5
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/JointPanel-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/LBeam-thumb.jpg b/extensions/fablabchemnitz/boxes.py/LBeam-thumb.jpg
index cf83929..8fa6641 100644
Binary files a/extensions/fablabchemnitz/boxes.py/LBeam-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/LBeam-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/LICENSE b/extensions/fablabchemnitz/boxes.py/LICENSE
new file mode 100644
index 0000000..9cecc1d
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {one line to give the program's name and a brief idea of what it does.}
+    Copyright (C) {year}  {name of author}
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    {project}  Copyright (C) {year}  {fullname}
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/extensions/fablabchemnitz/boxes.py/LaptopStand-thumb.jpg b/extensions/fablabchemnitz/boxes.py/LaptopStand-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/LaptopStand-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/LaserClamp-thumb.jpg b/extensions/fablabchemnitz/boxes.py/LaserClamp-thumb.jpg
index d36729b..ec9509a 100644
Binary files a/extensions/fablabchemnitz/boxes.py/LaserClamp-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/LaserClamp-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/LaserHoldfast-thumb.jpg b/extensions/fablabchemnitz/boxes.py/LaserHoldfast-thumb.jpg
index 445b9c8..a7880d6 100644
Binary files a/extensions/fablabchemnitz/boxes.py/LaserHoldfast-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/LaserHoldfast-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/MagazinFile-thumb.jpg b/extensions/fablabchemnitz/boxes.py/MagazinFile-thumb.jpg
index f9bfaea..89f644a 100644
Binary files a/extensions/fablabchemnitz/boxes.py/MagazinFile-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/MagazinFile-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/MakitaPowerSupply-thumb.jpg b/extensions/fablabchemnitz/boxes.py/MakitaPowerSupply-thumb.jpg
index d99acb7..41e518b 100644
Binary files a/extensions/fablabchemnitz/boxes.py/MakitaPowerSupply-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/MakitaPowerSupply-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/March36539-box-thumb.jpg b/extensions/fablabchemnitz/boxes.py/March36539-box-thumb.jpg
index e5ff2bf..b5a57fd 100644
Binary files a/extensions/fablabchemnitz/boxes.py/March36539-box-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/March36539-box-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/NotesHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/NotesHolder-thumb.jpg
index 8d90ab6..cce37af 100644
Binary files a/extensions/fablabchemnitz/boxes.py/NotesHolder-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/NotesHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/OpenBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/OpenBox-thumb.jpg
index ce4201b..bc0c0ed 100644
Binary files a/extensions/fablabchemnitz/boxes.py/OpenBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/OpenBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/OttoBody-thumb.jpg b/extensions/fablabchemnitz/boxes.py/OttoBody-thumb.jpg
index b05743c..481d13c 100644
Binary files a/extensions/fablabchemnitz/boxes.py/OttoBody-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/OttoBody-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/PaintStorage-thumb.jpg b/extensions/fablabchemnitz/boxes.py/PaintStorage-thumb.jpg
index 0d6fc68..161d296 100644
Binary files a/extensions/fablabchemnitz/boxes.py/PaintStorage-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/PaintStorage-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/PaperBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/PaperBox-thumb.jpg
index 756db16..1ba656f 100644
Binary files a/extensions/fablabchemnitz/boxes.py/PaperBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/PaperBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/PhoneHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/PhoneHolder-thumb.jpg
index 31aa83b..1f25718 100644
Binary files a/extensions/fablabchemnitz/boxes.py/PhoneHolder-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/PhoneHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Platonic-Icosahedron-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Platonic-Icosahedron-thumb.jpg
new file mode 100644
index 0000000..9a909b6
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/Platonic-Icosahedron-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Platonic-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Platonic-thumb.jpg
index 0d6015e..e036fc8 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Platonic-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Platonic-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/README.md b/extensions/fablabchemnitz/boxes.py/README.md
new file mode 100644
index 0000000..cb0e94b
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/README.md
@@ -0,0 +1,74 @@
+# MightyScape for Inkscape 1.2
+
+**In short**: MightyScape is a maintained extension collection for Inkscape 1.2, working on Windows and Linux. There are **238 extension folders** with **412 .inx files** inside. We also take part at the offical extension gallery with single extension uploads. See https://inkscape.org/gallery/=extension.
+
+# About MightyScape
+
+Looking to get more productive we started using some more special Inkscape extensions. We love Inkscape. And we love things like 3d printing, laser cutting, vinyl cutting, pen plotting, maths, physics, geometry, patterns, 2D drawings, 3D CAD , embroidery and more stuff. All this you can do with Inkscape! We recognized that there is no good source to pull extensions in a quick and clean way. Each developer puts his own code on his hidden/unknown repository and often without enough documentation or visible results for common understanding. Many plugins are completely unknown that way, and a lot of extensions are forked x times or are unmaintained. So many of them do not work with recent Inkscape or were never tested with newer versions so far.
+
+# What and why?
+
+This is a one-to-bundle-them-all collection of hundreds of additional functions to Inkscape (extensions) for the Python 3 based Inkscape version 1.2 including documentation, made for makers and artists. All plugins where sorted into custom categories (to avoid overloading the standard extension menu of Inkscape). You can find most of them in sub menu "FabLab Chemnitz". We renamed and cleaned a lot of *.inx files and *.py files. We applied some function renamings, id changes (for preferences.xml clean-keeping), spelling fixes, formattings and parameter corrections.
+
+It took years to search and find all them on the web (so much different possible sources where to find!), to read, to comment (report issues), to fix problems, to test, to document and to provide them online. Many extensions were nearly lost in translation.
+
+At least this repo will help to bring alife some good things and will show hidden gold. It meshes things together in a fresh and bundled way - with ease of use and minimum installation stress. A lot of code is not at the optimum. A mass of bugs has to be fixed and different tools should be improved in usage generally. This package will show errors more quickly. So hopefully a lot of new code fixes is result from this package. Maybe some people help to make all the stuff compatible with Inkscape 1.2 and newer.
+
+# Credits / Help to develop
+
+* This is not a repository to steal the work of others. The credits go to each developer, maintainer, commiter, issue reporter and so on. Please have a look at the meta.json in each directory to get information about licenses and authors.
+* All plugins are open source licensed and are GNU GPL compatible. See https://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses for more details.
+* All plugins were taken from each git repo's master branch (if git/svn available). There might exist some development branches, fork branches or issue comments which might resolve some issues or enhance functionality of provided plugins. To check for recent github forks use https://techgaun.github.io
+* A lot of plugins were fixed by ourselves in countless hours
+* If you find bugs or have ideas please push them directly to the corresponding root repository of the developer or put it to https://github.com/eridur-de/mightyscape-1.2/issues
+* Credits for creation of this big package: Mario Voigt / FabLab Chemnitz
+
+# Used software for development
+
+* Gitea and Github for hosting this
+* LiClipse for code and git committing
+* regular Python installation (both Linux and Windows)
+
+# Requirements / Tested environment
+
+* tested with Inkscape 1.2.1 and Python 3.10 (64 Bit)
+  * Windows portable version
+  * Fedora 37
+* Python 3.11 is not used because it causes trouble with some modules like lxml or Shapely at the moment
+* some extensions require custom Python installation/modules. See documentation at our FabLab Chemnitz Wiki (see below).
+* some extensions require additional commands, packages or other installers (see documentation too).
+
+# Installation, documentation and examples
+
+The structure of this repo is intended the be easy. Just copy the complete MightyScape folder or the folders you want to your Inkscape's extension directory. You will find redundancies in this repo like node.exe (NodeJS). We did it this way to give easy possibilty to only pick the extensions you want (instead creating ~200 repositories). MightyScape does not work with any releases or feature branches. Just use "git clone" to get the recent commit from master branch. Please see at https://y.stadtfabrikanten.org/mightyscape-overview for installation tips like required python modules, file locations and other adjustments.
+
+# About older MightyScape versions
+
+Please note there are older MightyScape repositories:
+
+Since Inkscape 1.2 we only work with official releases. In the past we worked with some development versions. This led to some issues with different extension code. This means: for each new major Inkscape release we create a new MightyScape repository too.
+
+# Donate
+
+<img src="./extensions/fablabchemnitz/000_about_fablabchemnitz.svg">
+
+We are the Stadtfabrikanten, running the FabLab Chemnitz since 2016. A FabLab is an open workshop that gives people access to machines and digital tools like 3D printers, laser cutters and CNC milling machines.
+
+You like our work and want to support us? You can donate to our non-profit organization by different ways:
+https://y.stadtfabrikanten.org/donate
+
+**Thanks for using our extension and helping us!**
+
+# git Locations
+
+This repo has two remotes:
+
+* https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2 (root repo origin)
+* https://github.com/eridur-de/mightyscape-1.2 (repo for collaboration. **Please put your issues here**)
+
+# Zip Archives - Mirrors
+
+If you only want to download single extensions of MightyScape, use one of the following mirrors to do that easily:
+
+* https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2-zipmirror
+* https://github.com/eridur-de/mightyscape-1.2-zipmirror
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/RegularBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RegularBox-thumb.jpg
index c2a0e37..021208a 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RegularBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RegularBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RegularStarBox-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RegularStarBox-2-thumb.jpg
new file mode 100644
index 0000000..1187fcc
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/RegularStarBox-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RegularStarBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RegularStarBox-thumb.jpg
new file mode 100644
index 0000000..c26fb63
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/RegularStarBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RobotArm-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RobotArm-thumb.jpg
index ceebc8e..dfa5568 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RobotArm-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RobotArm-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Rotary-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Rotary-thumb.jpg
index ac99079..e828292 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Rotary-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Rotary-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RoundedBox-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RoundedBox-2-thumb.jpg
index 6eb4510..c8bf295 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RoundedBox-2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RoundedBox-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RoundedBox-3-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RoundedBox-3-thumb.jpg
index eda1e63..3e9a1b8 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RoundedBox-3-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RoundedBox-3-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RoundedBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RoundedBox-thumb.jpg
index 471b167..b7a9827 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RoundedBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RoundedBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RoyalGame-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RoyalGame-2-thumb.jpg
index 55b8fe6..6c1c63b 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RoyalGame-2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RoyalGame-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RoyalGame-3-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RoyalGame-3-thumb.jpg
index e6c21d5..d8bae16 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RoyalGame-3-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RoyalGame-3-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/RoyalGame-thumb.jpg b/extensions/fablabchemnitz/boxes.py/RoyalGame-thumb.jpg
index d945e0c..9468614 100644
Binary files a/extensions/fablabchemnitz/boxes.py/RoyalGame-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/RoyalGame-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/SBCMicroRack-thumb.jpg b/extensions/fablabchemnitz/boxes.py/SBCMicroRack-thumb.jpg
index b3a6849..05fbd8e 100644
Binary files a/extensions/fablabchemnitz/boxes.py/SBCMicroRack-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/SBCMicroRack-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/ShutterBox-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/ShutterBox-2-thumb.jpg
index 3f497b5..ff34e89 100644
Binary files a/extensions/fablabchemnitz/boxes.py/ShutterBox-2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/ShutterBox-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/ShutterBox-3-thumb.jpg b/extensions/fablabchemnitz/boxes.py/ShutterBox-3-thumb.jpg
index 34a3043..6e541ba 100644
Binary files a/extensions/fablabchemnitz/boxes.py/ShutterBox-3-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/ShutterBox-3-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/ShutterBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/ShutterBox-thumb.jpg
index d2ecab0..ee36dbe 100644
Binary files a/extensions/fablabchemnitz/boxes.py/ShutterBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/ShutterBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Silverware-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Silverware-thumb.jpg
index f9bfaea..b670bca 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Silverware-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Silverware-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/SlidingDrawer-thumb.jpg b/extensions/fablabchemnitz/boxes.py/SlidingDrawer-thumb.jpg
new file mode 100644
index 0000000..39beb03
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/SlidingDrawer-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/SpicesRack-thumb.jpg b/extensions/fablabchemnitz/boxes.py/SpicesRack-thumb.jpg
index 12e69db..c57d0b6 100644
Binary files a/extensions/fablabchemnitz/boxes.py/SpicesRack-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/SpicesRack-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/Stachel-thumb.jpg b/extensions/fablabchemnitz/boxes.py/Stachel-thumb.jpg
index 112b485..3726f33 100644
Binary files a/extensions/fablabchemnitz/boxes.py/Stachel-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/Stachel-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/StorageRack-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/StorageRack-2-thumb.jpg
index f9b6599..e07a25a 100644
Binary files a/extensions/fablabchemnitz/boxes.py/StorageRack-2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/StorageRack-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/StorageRack-3-thumb.jpg b/extensions/fablabchemnitz/boxes.py/StorageRack-3-thumb.jpg
index fe2a846..dc8be16 100644
Binary files a/extensions/fablabchemnitz/boxes.py/StorageRack-3-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/StorageRack-3-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/StorageRack-thumb.jpg b/extensions/fablabchemnitz/boxes.py/StorageRack-thumb.jpg
index eb58422..10aa1d1 100644
Binary files a/extensions/fablabchemnitz/boxes.py/StorageRack-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/StorageRack-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/StorageShelf-thumb.jpg b/extensions/fablabchemnitz/boxes.py/StorageShelf-thumb.jpg
index 2232a1c..6f3d879 100644
Binary files a/extensions/fablabchemnitz/boxes.py/StorageShelf-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/StorageShelf-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TrafficLight-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TrafficLight-thumb.jpg
index 07973c5..db4f2b0 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TrafficLight-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TrafficLight-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TrayInsert-2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TrayInsert-2-thumb.jpg
index 209d066..1a4098a 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TrayInsert-2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TrayInsert-2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TrayInsert-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TrayInsert-thumb.jpg
index d460a37..022d263 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TrayInsert-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TrayInsert-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TrayLayout-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TrayLayout-thumb.jpg
index 9577f5a..c9d7d7b 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TrayLayout-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TrayLayout-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TrayLayout2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TrayLayout2-thumb.jpg
index 3ad4ca2..c9d7d7b 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TrayLayout2-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TrayLayout2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TwoPiece-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TwoPiece-thumb.jpg
index 0107142..b7bf2eb 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TwoPiece-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TwoPiece-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TwoPiece2-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TwoPiece2-thumb.jpg
new file mode 100644
index 0000000..0b25d2b
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/TwoPiece2-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/TypeTray-thumb.jpg b/extensions/fablabchemnitz/boxes.py/TypeTray-thumb.jpg
index f08b631..4178486 100644
Binary files a/extensions/fablabchemnitz/boxes.py/TypeTray-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/TypeTray-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/UBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/UBox-thumb.jpg
index 3ebc1dc..aad9aa4 100644
Binary files a/extensions/fablabchemnitz/boxes.py/UBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/UBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/UnevenHeightBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/UnevenHeightBox-thumb.jpg
index 6f44a5e..17bf7f8 100644
Binary files a/extensions/fablabchemnitz/boxes.py/UnevenHeightBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/UnevenHeightBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/UniversalBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/UniversalBox-thumb.jpg
index b634ebc..4178ace 100644
Binary files a/extensions/fablabchemnitz/boxes.py/UniversalBox-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/UniversalBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallCaliper-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallCaliper-thumb.jpg
new file mode 100644
index 0000000..a948013
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallCaliper-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallChiselHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallChiselHolder-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallChiselHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallConsole-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallConsole-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallConsole-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallDrillBox-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallDrillBox-thumb.jpg
new file mode 100644
index 0000000..52e874d
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallDrillBox-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallEdges-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallEdges-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallEdges-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallPinRow-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallPinRow-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallPinRow-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallPlaneHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallPlaneHolder-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallPlaneHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallPliersHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallPliersHolder-thumb.jpg
new file mode 100644
index 0000000..b1e7197
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallPliersHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallSlottedHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallSlottedHolder-thumb.jpg
new file mode 100644
index 0000000..c023cbd
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallSlottedHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallStairs-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallStairs-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallStairs-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallTypeTray-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallTypeTray-thumb.jpg
new file mode 100644
index 0000000..2e98efe
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallTypeTray-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WallWrenchHolder-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WallWrenchHolder-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WallWrenchHolder-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WalllStairs-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WalllStairs-thumb.jpg
new file mode 100644
index 0000000..f9bfaea
Binary files /dev/null and b/extensions/fablabchemnitz/boxes.py/WalllStairs-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/WineRack-thumb.jpg b/extensions/fablabchemnitz/boxes.py/WineRack-thumb.jpg
index a57cc76..1d30c75 100644
Binary files a/extensions/fablabchemnitz/boxes.py/WineRack-thumb.jpg and b/extensions/fablabchemnitz/boxes.py/WineRack-thumb.jpg differ
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.ABox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.ABox.inx
new file mode 100644
index 0000000..b5cabe2
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ABox.inx
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>ABox</name>
+<id>info.festi.boxes.py.ABox</id>
+<param name="generator" type="string" gui-hidden="true">abox</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="ABox">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
+      </param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./ABox-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/ABox</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Boxes"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.AgricolaInsert.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.AgricolaInsert.inx
index 400d1bb..2c7a635 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AgricolaInsert.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AgricolaInsert.inx
@@ -5,25 +5,33 @@
 <param name="generator" type="string" gui-hidden="true">agricolainsert</param>
 <param name="tab" type="notebook">
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./AgricolaInsert-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.AllEdges.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.AllEdges.inx
index c80e0dd..c4e3b21 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AllEdges.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AllEdges.inx
@@ -8,31 +8,39 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Hinges and HingePins">
         <param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
@@ -42,9 +50,9 @@
             <option value="outset">outset</option>
             <option value="flush">flush</option>
     </param>
-        <param name="Hinge_axle" type="int" max="9999" gui-text="axle" gui-description="diameter of the pin hole">2</param>
-        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids">0</param>
-        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place">1</param>
+        <param name="Hinge_axle" type="float" precision="2" max="9999" gui-text="axle" gui-description="diameter of the pin hole (multiples of thickness)">2.0</param>
+        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
+        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
     </page>
     <page name="tab_5" gui-text="Slide-on Lids">
         <param name="Lid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
@@ -59,26 +67,37 @@
         <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_6" gui-text="Click-on Lids">
         <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
-        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom">0.1</param>
-        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks">3.0</param>
+        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
+        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_7" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
-    <page name="tab_8" gui-text="Example">
+    <page name="tab_8" gui-text="HandleEdge">
+        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+        <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
+        <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
+        <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
+        <param name="HandleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of corners in mm">10.0</param>
+        <param name="HandleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the handle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_9" gui-text="Example">
         <image>./AllEdges-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.AngledBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.AngledBox.inx
index 232e6c8..1c70106 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AngledBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AngledBox.inx
@@ -8,12 +8,12 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
         <param name="n" type="int" max="9999" gui-text="n" gui-description="number of walls at one side (1+)">5</param>
         <param name="top" type="optiongroup" appearance="combo" gui-text="top" gui-description="style of the top and lid">
@@ -24,25 +24,33 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./AngledBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.AngledCutJig.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.AngledCutJig.inx
index f622c69..2dc90e7 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.AngledCutJig.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.AngledCutJig.inx
@@ -10,25 +10,33 @@
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="Angle of the cut">45.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./AngledCutJig-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Arcade.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Arcade.inx
index 9bbbef8..b872d8c 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Arcade.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Arcade.inx
@@ -10,25 +10,33 @@
         <param name="keyboard_depth" type="float" precision="2" max="9999" gui-text="keyboard_depth" gui-description="inner width of the console">150.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Arcade-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Atreus21.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Atreus21.inx
index ba477ef..86579d6 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Atreus21.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Atreus21.inx
@@ -13,12 +13,17 @@
         <param name="columns_definition" type="string" gui-text="columns_definition" gui-description="Each column is separated by '/', and is in the form 'nb_rows @ offset x repeat_count'. Nb_rows is the number of rows for this column. The offset is in mm and optional. Repeat_count is optional and repeats this column multiple times. Spaces are not important.For example '3x2 / 4@11' means we want 3 columns, the two first with 3 rows without offset, and the last with 4 rows starting at 11mm high.">4@3/4@6/4@11/4@5/4@0/1@7.8</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Atreus21-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BasedBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BasedBox.inx
index 44dcc9f..f3f51cb 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BasedBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BasedBox.inx
@@ -8,28 +8,36 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./BasedBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BayonetBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BayonetBox.inx
index b7c13dd..250dce2 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BayonetBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BayonetBox.inx
@@ -8,15 +8,20 @@
         <param name="diameter" type="float" precision="2" max="9999" gui-text="diameter" gui-description="Diameter of the box in mm">50.0</param>
         <param name="lugs" type="int" max="9999" gui-text="lugs" gui-description="number of locking lugs">10</param>
         <param name="alignment_pins" type="float" precision="2" max="9999" gui-text="alignment_pins" gui-description="diameter of the alignment pins">1.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./BayonetBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BinTray.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BinTray.inx
index b6ba4d4..26b9e33 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BinTray.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BinTray.inx
@@ -5,32 +5,41 @@
 <param name="generator" type="string" gui-hidden="true">bintray</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="BinTray">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">50*3</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>50*3</param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="hole_dD" type="string" gui-text="hole_dD" gui-description="mounting hole diameter (shaft:head) in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#mounting-holes)">3.5:6.5</param>
         <param name="front" type="float" precision="2" max="9999" gui-text="front" gui-description="fraction of bin height covert with slope">0.4</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./BinTray-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BirdHouse.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BirdHouse.inx
new file mode 100644
index 0000000..8e03b7e
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BirdHouse.inx
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>BirdHouse</name>
+<id>info.festi.boxes.py.BirdHouse</id>
+<param name="generator" type="string" gui-hidden="true">birdhouse</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="BirdHouse">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">200</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">200</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">200</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">10.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">10.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./BirdHouse-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/BirdHouse</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Unstable"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BottleStack.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BottleStack.inx
index d794f26..d4eb440 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BottleStack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BottleStack.inx
@@ -11,12 +11,17 @@
         <param name="double" type="bool" gui-text="double" gui-description="two pieces that can be combined to up to double the width">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./BottleStack-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BottleTag.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BottleTag.inx
new file mode 100644
index 0000000..d515ce7
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BottleTag.inx
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>BottleTag</name>
+<id>info.festi.boxes.py.BottleTag</id>
+<param name="generator" type="string" gui-hidden="true">bottletag</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="BottleTag">
+        <param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of neck tag">72</param>
+        <param name="height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of neck tag">98</param>
+        <param name="min_diameter" type="float" precision="2" max="9999" gui-text="min_diameter" gui-description="inner diameter of bottle neck hole">24</param>
+        <param name="max_diameter" type="float" precision="2" max="9999" gui-text="max_diameter" gui-description="outer diameter of bottle neck hole">50</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="corner radius of bottom tag">15</param>
+        <param name="segment_width" type="int" max="9999" gui-text="segment_width" gui-description="inner segment width">3</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Example">
+        <image>./BottleTag-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/BottleTag</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BreadBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BreadBox.inx
new file mode 100644
index 0000000..3f96e37
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BreadBox.inx
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>BreadBox</name>
+<id>info.festi.boxes.py.BreadBox</id>
+<param name="generator" type="string" gui-hidden="true">breadbox</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="BreadBox">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">150</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of the corners">40.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Flex">
+        <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">2.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.75</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
+    </page>
+    <page name="tab_4" gui-text="Example">
+        <image>./BreadBox-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/BreadBox</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Unstable"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.BurnTest.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.BurnTest.inx
index 4ef80e7..76dbe02 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.BurnTest.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.BurnTest.inx
@@ -10,25 +10,33 @@
         <param name="pairs" type="int" max="9999" gui-text="pairs" gui-description="number of pairs (each testing four burn values)">2</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./BurnTest-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.CanStorage.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.CanStorage.inx
new file mode 100644
index 0000000..6ad5f97
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CanStorage.inx
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>CanStorage</name>
+<id>info.festi.boxes.py.CanStorage</id>
+<param name="generator" type="string" gui-hidden="true">canstorage</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="CanStorage">
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="f">f Finger Joint</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+      </param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="e">e Straight Edge</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="š">š Stackable feet (bottom)</option>
+      </param>
+        <param name="canDiameter" type="float" precision="2" max="9999" gui-text="canDiameter" gui-description="outer diameter of the cans to be stored (in mm)">75</param>
+        <param name="canHight" type="float" precision="2" max="9999" gui-text="canHight" gui-description="hight of the cans to be stored (in mm)">110</param>
+        <param name="canNum" type="int" max="9999" gui-text="canNum" gui-description="number of cans to be stored">12</param>
+        <param name="chuteAngle" type="float" precision="2" max="9999" gui-text="chuteAngle" gui-description="slope angle of the chutes">5.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Stackable Edges">
+        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
+    </page>
+    <page name="tab_4" gui-text="Hole filling">
+        <param name="fillHoles_bar_length" type="int" max="9999" gui-text="bar_length" gui-description="maximum length of bars">50</param>
+        <param name="fillHoles_fill_pattern" type="optiongroup" appearance="combo" gui-text="fill_pattern" gui-description="style of hole pattern">
+            <option value="no fill">no fill</option>
+            <option value="hex">hex</option>
+            <option value="square">square</option>
+            <option value="random">random</option>
+            <option value="hbar">hbar</option>
+            <option value="vbar">vbar</option>
+    </param>
+        <param name="fillHoles_hole_max_radius" type="float" precision="2" max="9999" gui-text="hole_max_radius" gui-description="maximum radius of generated holes (in mm)">3.0</param>
+        <param name="fillHoles_hole_min_radius" type="float" precision="2" max="9999" gui-text="hole_min_radius" gui-description="minimum radius of generated holes (in mm)">0.5</param>
+        <param name="fillHoles_hole_style" type="optiongroup" appearance="combo" gui-text="hole_style" gui-description="style of holes (does not apply to fill patterns 'vbar' and 'hbar')">
+            <option value="round">round</option>
+            <option value="triangle">triangle</option>
+            <option value="square">square</option>
+            <option value="hexagon">hexagon</option>
+            <option value="octagon">octagon</option>
+    </param>
+        <param name="fillHoles_max_random" type="int" max="9999" gui-text="max_random" gui-description="maximum number of random holes">1000</param>
+        <param name="fillHoles_space_between_holes" type="float" precision="2" max="9999" gui-text="space_between_holes" gui-description="hole to hole spacing (in mm)">4.0</param>
+        <param name="fillHoles_space_to_border" type="float" precision="2" max="9999" gui-text="space_to_border" gui-description="hole to border spacing (in mm)">4.0</param>
+    </page>
+    <page name="tab_5" gui-text="Example">
+        <image>./CanStorage-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/CanStorage</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.CardBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.CardBox.inx
index 750abc2..5c61973 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CardBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CardBox.inx
@@ -11,25 +11,33 @@
         <param name="num" type="int" max="9999" gui-text="num" gui-description="number of compartments">2</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./CardBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.CardHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.CardHolder.inx
new file mode 100644
index 0000000..8be679e
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CardHolder.inx
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>CardHolder</name>
+<id>info.festi.boxes.py.CardHolder</id>
+<param name="generator" type="string" gui-hidden="true">cardholder</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="CardHolder">
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">68*3</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">40</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
+        <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="backward angle of floor">7.5</param>
+        <param name="stackable" type="bool" gui-text="stackable" gui-description="make holders stackable">true</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Grooved Edge">
+        <param name="Grooved_arc_angle" type="int" max="9999" gui-text="arc_angle" gui-description="the angle of arc cuts">120</param>
+        <param name="Grooved_gap" type="float" precision="2" max="9999" gui-text="gap" gui-description="the gap between grooves (fraction of the edge length)">0.1</param>
+        <param name="Grooved_interleave" type="bool" gui-text="interleave" gui-description="alternate the direction of grooves">false</param>
+        <param name="Grooved_inverse" type="bool" gui-text="inverse" gui-description="invert the groove directions">false</param>
+        <param name="Grooved_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without grooves (fraction of the edge length)">0.3</param>
+        <param name="Grooved_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="the style of grooves">
+            <option value="arc">arc</option>
+            <option value="flat">flat</option>
+            <option value="triangle">triangle</option>
+            <option value="softarc">softarc</option>
+    </param>
+        <param name="Grooved_tri_angle" type="int" max="9999" gui-text="tri_angle" gui-description="the angle of triangular cuts">30</param>
+        <param name="Grooved_width" type="float" precision="2" max="9999" gui-text="width" gui-description="the width of each groove (fraction of the edge length)">0.2</param>
+    </page>
+    <page name="tab_3" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="Example">
+        <image>./CardHolder-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/CardHolder</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Shelves"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Castle.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Castle.inx
index 2ddcb90..330e9e0 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Castle.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Castle.inx
@@ -5,25 +5,33 @@
 <param name="generator" type="string" gui-hidden="true">castle</param>
 <param name="tab" type="notebook">
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Castle-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.ClosedBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.ClosedBox.inx
index 864dbae..faa6146 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ClosedBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ClosedBox.inx
@@ -8,28 +8,36 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./ClosedBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.CoffeeCapsuleHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.CoffeeCapsuleHolder.inx
index 3507e05..32de0c9 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.CoffeeCapsuleHolder.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CoffeeCapsuleHolder.inx
@@ -10,12 +10,17 @@
         <param name="backplate" type="bool" gui-text="backplate" gui-description="True if a backplate should be generated.">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./CoffeeCapsuleHolder-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.CoinDisplay.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.CoinDisplay.inx
new file mode 100644
index 0000000..7a0fe8b
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.CoinDisplay.inx
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>CoinDisplay</name>
+<id>info.festi.boxes.py.CoinDisplay</id>
+<param name="generator" type="string" gui-hidden="true">coindisplay</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="CoinDisplay">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="coin_d" type="float" precision="2" max="9999" gui-text="coin_d" gui-description="The diameter of the coin in mm">20.0</param>
+        <param name="coin_plate" type="float" precision="2" max="9999" gui-text="coin_plate" gui-description="The size of the coin plate">50.0</param>
+        <param name="coin_showcase_h" type="float" precision="2" max="9999" gui-text="coin_showcase_h" gui-description="The height of the coin showcase piece">50.0</param>
+        <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="The angle that the coin will tilt as">30</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./CoinDisplay-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/CoinDisplay</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.ConcaveKnob.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.ConcaveKnob.inx
index 66f24e3..2492b98 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ConcaveKnob.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ConcaveKnob.inx
@@ -14,12 +14,17 @@
         <param name="hexhead" type="float" precision="2" max="9999" gui-text="hexhead" gui-description="Width of the hex bolt head (mm)">10.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./ConcaveKnob-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Console.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Console.inx
index ac38951..d5a6c09 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Console.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Console.inx
@@ -8,36 +8,44 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">false</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
         <param name="front_height" type="float" precision="2" max="9999" gui-text="front_height" gui-description="height of the front below the panel (in mm)">30</param>
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the front panel (90°=upright)">50</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./Console-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Console2.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Console2.inx
index 9dd5a1d..6f3a5a4 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Console2.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Console2.inx
@@ -8,13 +8,13 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">false</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
         <param name="front_height" type="float" precision="2" max="9999" gui-text="front_height" gui-description="height of the front below the panel (in mm)">30</param>
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the front panel (90°=upright)">50</param>
         <param name="removable_backwall" type="bool" gui-text="removable_backwall" gui-description="have latches at the backwall">true</param>
@@ -22,31 +22,39 @@
         <param name="glued_panel" type="bool" gui-text="glued_panel" gui-description="the panel is glued and not held by finger joints">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./Console2-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DiceBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DiceBox.inx
new file mode 100644
index 0000000..f54957d
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DiceBox.inx
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>DiceBox</name>
+<id>info.festi.boxes.py.DiceBox</id>
+<param name="generator" type="string" gui-hidden="true">dicebox</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="DiceBox">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">18</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="lidheight" type="float" precision="2" max="9999" gui-text="lidheight" gui-description="height of lid in mm">18</param>
+        <param name="hex_hole_corner_radius" type="float" precision="2" max="9999" gui-text="hex_hole_corner_radius" gui-description="The corner radius of the hexagonal dice holes, in mm">5</param>
+        <param name="magnet_diameter" type="float" precision="2" max="9999" gui-text="magnet_diameter" gui-description="The diameter of magnets for holding the box closed, in mm">6</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Chest Hinges">
+        <param name="ChestHinge_finger_joints_on_box" type="bool" gui-text="finger_joints_on_box" gui-description="whether to include finger joints on the edge with the box">true</param>
+        <param name="ChestHinge_finger_joints_on_lid" type="bool" gui-text="finger_joints_on_lid" gui-description="whether to include finger joints on the edge with the lid">true</param>
+        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1.0</param>
+        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge (multiples of thickness)">2.0</param>
+        <param name="ChestHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="play">0.1</param>
+    </page>
+    <page name="tab_4" gui-text="Example">
+        <image>./DiceBox-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/DiceBox</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Boxes"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DinRailBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DinRailBox.inx
index 2aaa606..b319030 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DinRailBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DinRailBox.inx
@@ -12,25 +12,33 @@
         <param name="rail_offset" type="float" precision="2" max="9999" gui-text="rail_offset" gui-description="offset of the rail from the middle of the box (in mm)">0.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.8</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.8</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./DinRailBox-thumb.jpg</image>
@@ -41,7 +49,7 @@
     <object-type>all</object-type>
     <effects-menu>
         <submenu name="FabLab Chemnitz Boxes.py">
-            <submenu name="Boxes"/>
+            <submenu name="WallMounted"/>
         </submenu>
     </effects-menu>
 </effect>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DiscRack.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DiscRack.inx
index 11ef247..fd9b79e 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DiscRack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DiscRack.inx
@@ -5,7 +5,7 @@
 <param name="generator" type="string" gui-hidden="true">discrack</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="DiscRack">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">20*10</param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">20*10</param>
         <param name="disc_diameter" type="float" precision="2" max="9999" gui-text="disc_diameter" gui-description="Disc diameter in mm">150.0</param>
         <param name="disc_thickness" type="float" precision="2" max="9999" gui-text="disc_thickness" gui-description="Thickness of the discs in mm">5.0</param>
         <param name="lower_factor" type="float" precision="2" max="9999" gui-text="lower_factor" gui-description="Position of the lower rack grids along the radius">0.75</param>
@@ -14,25 +14,33 @@
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="Backwards slant of the rack">18</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./DiscRack-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Dispenser.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Dispenser.inx
new file mode 100644
index 0000000..5c55d1c
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Dispenser.inx
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>Dispenser</name>
+<id>info.festi.boxes.py.Dispenser</id>
+<param name="generator" type="string" gui-hidden="true">dispenser</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="Dispenser">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
+        <param name="slotheight" type="float" precision="2" max="9999" gui-text="slotheight" gui-description="height of the dispenser slot / items (in mm)">10.0</param>
+        <param name="bottomheight" type="float" precision="2" max="9999" gui-text="bottomheight" gui-description="height underneath the dispenser (in mm)">0.0</param>
+        <param name="sideedges" type="optiongroup" appearance="combo" gui-text="sideedges" gui-description="edges used for holding the front panels and back">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+      </param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Stackable Edges">
+        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
+    </page>
+    <page name="tab_4" gui-text="Example">
+        <image>./Dispenser-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/Dispenser</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Display.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Display.inx
index 165b722..5b154e3 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Display.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Display.inx
@@ -11,12 +11,17 @@
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="greater zero for top wider as bottom">0.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Display-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayCase.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayCase.inx
index 414d81b..c9a9807 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayCase.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayCase.inx
@@ -8,29 +8,37 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="overhang" type="float" precision="2" max="9999" gui-text="overhang" gui-description="overhang for joints in mm">2</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./DisplayCase-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayShelf.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayShelf.inx
index 6dba3ab..9d09746 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayShelf.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DisplayShelf.inx
@@ -8,31 +8,39 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">400</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">300</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="num" type="int" max="9999" gui-text="num" gui-description="number of shelves">3</param>
         <param name="front" type="float" precision="2" max="9999" gui-text="front" gui-description="height of front walls">20.0</param>
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of floors (negative values for slanting backwards)">30.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./DisplayShelf-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DividerTray.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DividerTray.inx
index 7e67825..84c5aa9 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DividerTray.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DividerTray.inx
@@ -5,44 +5,69 @@
 <param name="generator" type="string" gui-hidden="true">dividertray</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="DividerTray">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">50*3</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>50*3</param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
-        <param name="slot_depth" type="float" precision="2" max="9999" gui-text="slot_depth" gui-description="depth of the slot in mm">20</param>
-        <param name="slot_angle" type="float" precision="2" max="9999" gui-text="slot_angle" gui-description="angle at which slots are generated, in degrees. 0° is vertical.">0</param>
-        <param name="slot_radius" type="float" precision="2" max="9999" gui-text="slot_radius" gui-description="radius of the slot entrance in mm">2</param>
-        <param name="slot_extra_slack" type="float" precision="2" max="9999" gui-text="slot_extra_slack" gui-description="extra slack (in addition to thickness and kerf) for slot width to help insert dividers">0.2</param>
-        <param name="divider_bottom_margin" type="float" precision="2" max="9999" gui-text="divider_bottom_margin" gui-description="margin between box's bottom and divider's">0</param>
-        <param name="divider_upper_notch_radius" type="float" precision="2" max="9999" gui-text="divider_upper_notch_radius" gui-description="divider's notch's upper radius">1</param>
-        <param name="divider_lower_notch_radius" type="float" precision="2" max="9999" gui-text="divider_lower_notch_radius" gui-description="divider's notch's lower radius">8</param>
-        <param name="divider_notch_depth" type="float" precision="2" max="9999" gui-text="divider_notch_depth" gui-description="divider's notch's depth">15</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="notches_in_wall" type="bool" gui-text="notches_in_wall" gui-description="generate the same notches on the walls that are on the dividers">true</param>
         <param name="left_wall" type="bool" gui-text="left_wall" gui-description="generate wall on the left side">true</param>
         <param name="right_wall" type="bool" gui-text="right_wall" gui-description="generate wall on the right side">true</param>
         <param name="bottom" type="bool" gui-text="bottom" gui-description="generate wall on the bottom">false</param>
+        <param name="handle" type="bool" gui-text="handle" gui-description="add handle to the bottom">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_3" gui-text="Example">
+    <page name="tab_3" gui-text="HandleEdge">
+        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+        <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
+        <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
+        <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
+        <param name="HandleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of corners in mm">10.0</param>
+        <param name="HandleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the handle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="Divider Slots">
+        <param name="Slot_angle" type="int" max="9999" gui-text="angle" gui-description="angle at which slots are generated, in degrees. 0° is vertical.">0</param>
+        <param name="Slot_depth" type="int" max="9999" gui-text="depth" gui-description="depth of the slot in mm">20</param>
+        <param name="Slot_extra_slack" type="float" precision="2" max="9999" gui-text="extra_slack" gui-description="extra slack (in addition to thickness and kerf) to help insert dividers in mm">0.2</param>
+        <param name="Slot_radius" type="int" max="9999" gui-text="radius" gui-description="radius of the slot entrance in mm">2</param>
+    </page>
+    <page name="tab_5" gui-text="Notches on the Dividers">
+        <param name="Notch_depth" type="int" max="9999" gui-text="depth" gui-description="depth">15</param>
+        <param name="Notch_lower_radius" type="int" max="9999" gui-text="lower_radius" gui-description="lower_radius">8</param>
+        <param name="Notch_upper_radius" type="int" max="9999" gui-text="upper_radius" gui-description="upper_radius">1</param>
+    </page>
+    <page name="tab_6" gui-text="Dividers">
+        <param name="Divider_bottom_margin" type="int" max="9999" gui-text="bottom_margin" gui-description="margin between box's bottom and divider's in mm">0</param>
+        <param name="Divider_play" type="float" precision="2" max="9999" gui-text="play" gui-description="play to avoid them clamping onto the walls (in multiples of thickness)">0.05</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
         <image>./DividerTray-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DoubleFlexDoorBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DoubleFlexDoorBox.inx
index a2d6ada..c0b6bfb 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DoubleFlexDoorBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DoubleFlexDoorBox.inx
@@ -8,36 +8,44 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="Radius of the latch in mm">15</param>
         <param name="latchsize" type="float" precision="2" max="9999" gui-text="latchsize" gui-description="size of latch in multiples of thickness">8</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./DoubleFlexDoorBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DrillBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DrillBox.inx
index 07c0825..eb37e3f 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DrillBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DrillBox.inx
@@ -5,35 +5,84 @@
 <param name="generator" type="string" gui-hidden="true">drillbox</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="DrillBox">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">25*3</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>60*4</param>
-        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">60</param>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="t">t Triangle for handle</option>
+            <option value="G">G Edge with pear shaped mounting holes</option>
+      </param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">25*3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">60*4</param>
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">5:25:10</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
+      </param>
         <param name="holes" type="int" max="9999" gui-text="holes" gui-description="Number of holes for each size">3</param>
         <param name="firsthole" type="float" precision="2" max="9999" gui-text="firsthole" gui-description="Smallest hole">1.0</param>
         <param name="holeincrement" type="float" precision="2" max="9999" gui-text="holeincrement" gui-description="increment between holes">0.5</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">3.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_3" gui-text="Example">
+    <page name="tab_3" gui-text="RoundedTriangleEdge">
+        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">50.0</param>
+        <param name="RoundedTriangleEdge_r_hole" type="float" precision="2" max="9999" gui-text="r_hole" gui-description="radius of hole">2.0</param>
+        <param name="RoundedTriangleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of top corner">30.0</param>
+        <param name="RoundedTriangleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="Stackable Edges">
+        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
+    </page>
+    <page name="tab_5" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.125</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">2</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_6" gui-text="Example">
         <image>./DrillBox-thumb.jpg</image>
     </page>
 </param>
@@ -42,7 +91,7 @@
     <object-type>all</object-type>
     <effects-menu>
         <submenu name="FabLab Chemnitz Boxes.py">
-            <submenu name="Misc"/>
+            <submenu name="Trays and Drawer Inserts"/>
         </submenu>
     </effects-menu>
 </effect>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.DrillStand.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.DrillStand.inx
index 6416ea6..1fcad76 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.DrillStand.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.DrillStand.inx
@@ -5,37 +5,45 @@
 <param name="generator" type="string" gui-hidden="true">drillstand</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="DrillStand">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">25*6</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>10:20:30</param>
-        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm. See --sy for format">25:40:60</param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">25*6</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">10:20:30</param>
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">25:40:60</param>
         <param name="extra_height" type="float" precision="2" max="9999" gui-text="extra_height" gui-description="height difference left to right">15.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">1.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="int" max="9999" gui-text="width" gui-description="width of the feet">3</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">1.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_3" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./DrillStand-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.ElectronicsBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.ElectronicsBox.inx
index 931a95f..fc1b89b 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ElectronicsBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ElectronicsBox.inx
@@ -8,7 +8,7 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="triangle" type="float" precision="2" max="9999" gui-text="triangle" gui-description="Sides of the triangles holding the lid in mm">25.0</param>
         <param name="d1" type="float" precision="2" max="9999" gui-text="d1" gui-description="Diameter of the inner lid screw holes in mm">2.0</param>
         <param name="d2" type="float" precision="2" max="9999" gui-text="d2" gui-description="Diameter of the lid screw holes in mm">3.0</param>
@@ -17,25 +17,33 @@
         <param name="holedist" type="float" precision="2" max="9999" gui-text="holedist" gui-description="Distance of the screw holes from the wall in mm">7.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./ElectronicsBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.EuroRackSkiff.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.EuroRackSkiff.inx
index 2b610b3..e3672cb 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.EuroRackSkiff.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.EuroRackSkiff.inx
@@ -9,25 +9,33 @@
         <param name="hp" type="int" max="9999" gui-text="hp" gui-description="Width of the case in HP">84</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./EuroRackSkiff-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FanHole.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FanHole.inx
index 68adafb..ac0dee9 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FanHole.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FanHole.inx
@@ -17,12 +17,17 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./FanHole-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FillTest.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FillTest.inx
new file mode 100644
index 0000000..8604d7d
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FillTest.inx
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>FillTest</name>
+<id>info.festi.boxes.py.FillTest</id>
+<param name="generator" type="string" gui-hidden="true">filltest</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="FillTest">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">320</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">220</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Hole filling">
+        <param name="fillHoles_bar_length" type="int" max="9999" gui-text="bar_length" gui-description="maximum length of bars">50</param>
+        <param name="fillHoles_fill_pattern" type="optiongroup" appearance="combo" gui-text="fill_pattern" gui-description="style of hole pattern">
+            <option value="no fill">no fill</option>
+            <option value="hex">hex</option>
+            <option value="square">square</option>
+            <option value="random">random</option>
+            <option value="hbar">hbar</option>
+            <option value="vbar">vbar</option>
+    </param>
+        <param name="fillHoles_hole_max_radius" type="float" precision="2" max="9999" gui-text="hole_max_radius" gui-description="maximum radius of generated holes (in mm)">3.0</param>
+        <param name="fillHoles_hole_min_radius" type="float" precision="2" max="9999" gui-text="hole_min_radius" gui-description="minimum radius of generated holes (in mm)">0.5</param>
+        <param name="fillHoles_hole_style" type="optiongroup" appearance="combo" gui-text="hole_style" gui-description="style of holes (does not apply to fill patterns 'vbar' and 'hbar')">
+            <option value="round">round</option>
+            <option value="triangle">triangle</option>
+            <option value="square">square</option>
+            <option value="hexagon">hexagon</option>
+            <option value="octagon">octagon</option>
+    </param>
+        <param name="fillHoles_max_random" type="int" max="9999" gui-text="max_random" gui-description="maximum number of random holes">1000</param>
+        <param name="fillHoles_space_between_holes" type="float" precision="2" max="9999" gui-text="space_between_holes" gui-description="hole to hole spacing (in mm)">4.0</param>
+        <param name="fillHoles_space_to_border" type="float" precision="2" max="9999" gui-text="space_to_border" gui-description="hole to border spacing (in mm)">4.0</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./FillTest-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/FillTest</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Parts and Samples"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox.inx
index e8bedeb..ad9a664 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox.inx
@@ -8,36 +8,44 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="Radius of the latch in mm">15</param>
         <param name="latchsize" type="float" precision="2" max="9999" gui-text="latchsize" gui-description="size of latch in multiples of thickness">8</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./FlexBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox2.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox2.inx
index 8f0d594..93fe79f 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox2.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox2.inx
@@ -8,36 +8,44 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="Radius of the corners in mm">15</param>
         <param name="latchsize" type="float" precision="2" max="9999" gui-text="latchsize" gui-description="size of latch in multiples of thickness">8</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./FlexBox2-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox3.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox3.inx
index 78bcdaa..5fc1a9e 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox3.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox3.inx
@@ -7,38 +7,46 @@
     <page name="tab_0" gui-text="FlexBox3">
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="z" type="float" precision="2" max="9999" gui-text="z" gui-description="height of the box">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="height of the lid">10.0</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of the lids living hinge">10.0</param>
         <param name="c" type="float" precision="2" max="9999" gui-text="c" gui-description="clearance of the lid">1.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="int" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./FlexBox3-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox4.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox4.inx
index b709e74..922f53e 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox4.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox4.inx
@@ -8,36 +8,44 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="Radius of the corners in mm">15</param>
         <param name="latchsize" type="float" precision="2" max="9999" gui-text="latchsize" gui-description="size of latch in multiples of thickness">8</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./FlexBox4-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox5.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox5.inx
index 7056428..3959bd0 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox5.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexBox5.inx
@@ -7,37 +7,45 @@
     <page name="tab_0" gui-text="FlexBox5">
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="top_diameter" type="float" precision="2" max="9999" gui-text="top_diameter" gui-description="diameter at the top">60</param>
         <param name="bottom_diameter" type="float" precision="2" max="9999" gui-text="bottom_diameter" gui-description="diameter at the bottom">60</param>
         <param name="latchsize" type="float" precision="2" max="9999" gui-text="latchsize" gui-description="size of latch in multiples of thickness">8</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./FlexBox5-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest.inx
index ad1237d..fabf5d8 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest.inx
@@ -9,18 +9,23 @@
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./FlexTest-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest2.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest2.inx
index 793278a..d43e759 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest2.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.FlexTest2.inx
@@ -10,12 +10,17 @@
         <param name="fw" type="float" precision="2" max="9999" gui-text="fw" gui-description="distance of flex cuts in multiples of thickness">1</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./FlexTest2-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Folder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Folder.inx
index f5890ed..68c4537 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Folder.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Folder.inx
@@ -11,25 +11,23 @@
         <param name="r" type="float" precision="2" max="9999" gui-text="r" gui-description="radius of the corners">10.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
-    </page>
-    <page name="tab_2" gui-text="Finger Joints">
-        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
-        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
-            <option value="rectangular">rectangular</option>
-            <option value="springs">springs</option>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Flex">
+        <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Folder-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.GearBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.GearBox.inx
index 940476d..d6e7ebe 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.GearBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.GearBox.inx
@@ -12,25 +12,33 @@
         <param name="stages" type="int" max="9999" gui-text="stages" gui-description="number of stages in the gear reduction">4</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./GearBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Gears.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Gears.inx
index 8af0caa..9ed0829 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Gears.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Gears.inx
@@ -16,12 +16,17 @@
         <param name="profile_shift" type="float" precision="2" max="9999" gui-text="profile_shift" gui-description="in precent of the modulus">20</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Gears-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.HalfBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.HalfBox.inx
new file mode 100644
index 0000000..8ae3fb4
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.HalfBox.inx
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>HalfBox</name>
+<id>info.festi.boxes.py.HalfBox</id>
+<param name="generator" type="string" gui-hidden="true">halfbox</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="HalfBox">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50:50</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
+        <param name="Clamping" type="bool" gui-text="Clamping" gui-description="add clamping holes">false</param>
+        <param name="ClampingSize" type="float" precision="2" max="9999" gui-text="ClampingSize" gui-description="diameter of clamping holes">25.0</param>
+        <param name="Mounting" type="bool" gui-text="Mounting" gui-description="add mounting holes">false</param>
+        <param name="Sturdy" type="bool" gui-text="Sturdy" gui-description="create sturdy construction (e.g. shelf, clamping jig, ...)">false</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.125</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">2</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_4" gui-text="Example">
+        <image>./HalfBox-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/HalfBox</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Boxes"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.HeartBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.HeartBox.inx
index 37686ec..4607e84 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.HeartBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.HeartBox.inx
@@ -14,31 +14,39 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">1.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">1.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./HeartBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.HingeBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.HingeBox.inx
index bc85a6a..7ff5da2 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.HingeBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.HingeBox.inx
@@ -8,30 +8,38 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="lidheight" type="float" precision="2" max="9999" gui-text="lidheight" gui-description="height of lid in mm">20.0</param>
         <param name="splitlid" type="float" precision="2" max="9999" gui-text="splitlid" gui-description="split the lid in y direction (mm)">0.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Cabinet Hinges">
         <param name="CabinetHinge_bore" type="float" precision="2" max="9999" gui-text="bore" gui-description="diameter of the pin hole in mm">3.2</param>
@@ -41,9 +49,9 @@
             <option value="inside">inside</option>
             <option value="outside">outside</option>
     </param>
-        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (in multiples of thickness)">1.5</param>
-        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (in multiples of thickness)">0.05</param>
-        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge">2.0</param>
+        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (multiples of thickness)">1.5</param>
+        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (multiples of thickness)">0.05</param>
+        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge (multiples of thickness)">2.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./HingeBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.HolePattern.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.HolePattern.inx
new file mode 100644
index 0000000..4455983
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.HolePattern.inx
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>HolePattern</name>
+<id>info.festi.boxes.py.HolePattern</id>
+<param name="generator" type="string" gui-hidden="true">holepattern</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="HolePattern">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100.0</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100.0</param>
+        <param name="shape" type="optiongroup" appearance="combo" gui-text="shape" gui-description="Shape of the hole pattern">
+            <option value="rectangle">rectangle</option>
+            <option value="ellipse">ellipse</option>
+            <option value="oval">oval</option>
+            <option value="hexagon">hexagon</option>
+            <option value="octagon">octagon</option>
+    </param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Hole filling">
+        <param name="fillHoles_bar_length" type="int" max="9999" gui-text="bar_length" gui-description="maximum length of bars">50</param>
+        <param name="fillHoles_fill_pattern" type="optiongroup" appearance="combo" gui-text="fill_pattern" gui-description="style of hole pattern">
+            <option value="no fill">no fill</option>
+            <option value="hex">hex</option>
+            <option value="square">square</option>
+            <option value="random">random</option>
+            <option value="hbar">hbar</option>
+            <option value="vbar">vbar</option>
+    </param>
+        <param name="fillHoles_hole_max_radius" type="float" precision="2" max="9999" gui-text="hole_max_radius" gui-description="maximum radius of generated holes (in mm)">3.0</param>
+        <param name="fillHoles_hole_min_radius" type="float" precision="2" max="9999" gui-text="hole_min_radius" gui-description="minimum radius of generated holes (in mm)">0.5</param>
+        <param name="fillHoles_hole_style" type="optiongroup" appearance="combo" gui-text="hole_style" gui-description="style of holes (does not apply to fill patterns 'vbar' and 'hbar')">
+            <option value="round">round</option>
+            <option value="triangle">triangle</option>
+            <option value="square">square</option>
+            <option value="hexagon">hexagon</option>
+            <option value="octagon">octagon</option>
+    </param>
+        <param name="fillHoles_max_random" type="int" max="9999" gui-text="max_random" gui-description="maximum number of random holes">1000</param>
+        <param name="fillHoles_space_between_holes" type="float" precision="2" max="9999" gui-text="space_between_holes" gui-description="hole to hole spacing (in mm)">4.0</param>
+        <param name="fillHoles_space_to_border" type="float" precision="2" max="9999" gui-text="space_to_border" gui-description="hole to border spacing (in mm)">4.0</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./HolePattern-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/HolePattern</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Hole patterns"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Hook.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Hook.inx
index c1b5da4..582552a 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Hook.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Hook.inx
@@ -12,25 +12,33 @@
         <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the support underneeth">45.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Hook-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.IntegratedHingeBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.IntegratedHingeBox.inx
index b1392a7..61d123e 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.IntegratedHingeBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.IntegratedHingeBox.inx
@@ -8,33 +8,43 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="lidheight" type="float" precision="2" max="9999" gui-text="lidheight" gui-description="height of lid in mm">20.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Chest Hinges">
-        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place">1.0</param>
-        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge">2.0</param>
+        <param name="ChestHinge_finger_joints_on_box" type="bool" gui-text="finger_joints_on_box" gui-description="whether to include finger joints on the edge with the box">false</param>
+        <param name="ChestHinge_finger_joints_on_lid" type="bool" gui-text="finger_joints_on_lid" gui-description="whether to include finger joints on the edge with the lid">false</param>
+        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1.0</param>
+        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge (multiples of thickness)">2.0</param>
         <param name="ChestHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="play">0.1</param>
     </page>
     <page name="tab_4" gui-text="Example">
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.JointPanel.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.JointPanel.inx
new file mode 100644
index 0000000..fc87c5a
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.JointPanel.inx
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>JointPanel</name>
+<id>info.festi.boxes.py.JointPanel</id>
+<param name="generator" type="string" gui-hidden="true">jointpanel</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="JointPanel">
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">400/2</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">400/3</param>
+        <param name="separate" type="bool" gui-text="separate" gui-description="draw pieces apart so they can be cut to form a large sheet">false</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Dove Tail Joints">
+        <param name="DoveTail_angle" type="int" max="9999" gui-text="angle" gui-description="how much should fingers widen (-80 to 80)">50</param>
+        <param name="DoveTail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="how far the dove tails stick out of/into the edge (multiples of thickness)">0.5</param>
+        <param name="DoveTail_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius used on all four corners (multiples of thickness)">0.1</param>
+        <param name="DoveTail_size" type="int" max="9999" gui-text="size" gui-description="from one middle of a dove tail to another (multiples of thickness)">1</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./JointPanel-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/JointPanel</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Keypad.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Keypad.inx
index 6fe9aee..16bb06f 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Keypad.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Keypad.inx
@@ -16,25 +16,33 @@
         <param name="columns_definition" type="string" gui-text="columns_definition" gui-description="Each column is separated by '/', and is in the form 'nb_rows @ offset x repeat_count'. Nb_rows is the number of rows for this column. The offset is in mm and optional. Repeat_count is optional and repeats this column multiple times. Spaces are not important.For example '3x2 / 4@11' means we want 3 columns, the two first with 3 rows without offset, and the last with 4 rows starting at 11mm high.">4x3</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="int" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Keypad-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.LBeam.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.LBeam.inx
index 890bb76..4449a25 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.LBeam.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.LBeam.inx
@@ -8,28 +8,36 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./LBeam-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.LaptopStand.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.LaptopStand.inx
new file mode 100644
index 0000000..99e1705
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.LaptopStand.inx
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>LaptopStand</name>
+<id>info.festi.boxes.py.LaptopStand</id>
+<param name="generator" type="string" gui-hidden="true">laptopstand</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="LaptopStand">
+        <param name="l_depth" type="float" precision="2" max="9999" gui-text="l_depth" gui-description="laptop depth - front to back (mm)">250</param>
+        <param name="l_thickness" type="float" precision="2" max="9999" gui-text="l_thickness" gui-description="laptop thickness (mm)">10</param>
+        <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="desired tilt of keyboard (deg)">15</param>
+        <param name="ground_offset" type="float" precision="2" max="9999" gui-text="ground_offset" gui-description="desired height between bottom of laptop and ground at lowest point (front of laptop stand)">10</param>
+        <param name="nub_size" type="float" precision="2" max="9999" gui-text="nub_size" gui-description="desired thickness of the supporting edge">10</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Example">
+        <image>./LaptopStand-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/LaptopStand</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Misc"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.LaserClamp.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.LaserClamp.inx
index 3778ed7..492b85c 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.LaserClamp.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.LaserClamp.inx
@@ -10,25 +10,33 @@
         <param name="extraheight" type="float" precision="2" max="9999" gui-text="extraheight" gui-description="extra height to make operation smoother in mm">0.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="int" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./LaserClamp-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.LaserHoldfast.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.LaserHoldfast.inx
index 580af55..bea0eae 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.LaserHoldfast.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.LaserHoldfast.inx
@@ -11,12 +11,17 @@
         <param name="shaftwidth" type="float" precision="2" max="9999" gui-text="shaftwidth" gui-description="width of the shaft">5.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./LaserHoldfast-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.MagazinFile.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.MagazinFile.inx
index c497678..99f1dc5 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.MagazinFile.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.MagazinFile.inx
@@ -5,34 +5,63 @@
 <param name="generator" type="string" gui-hidden="true">magazinfile</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="MagazinFile">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
-        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
-        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="hi" type="float" precision="2" max="9999" gui-text="hi" gui-description="inner height of inner walls in mm (unless outside selected)(leave to zero for same as outer walls)">0.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">200</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">300</param>
+        <param name="hi" type="float" precision="2" max="9999" gui-text="hi" gui-description="inner height of inner walls in mm (unless outside selected)(leave to zero for same as outer walls)">0</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">false</param>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="G">G Edge with pear shaped mounting holes</option>
+      </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_3" gui-text="Example">
+    <page name="tab_3" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.0</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">1</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_4" gui-text="Example">
         <image>./MagazinFile-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.MakitaPowerSupply.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.MakitaPowerSupply.inx
index c15dac6..0775e64 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.MakitaPowerSupply.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.MakitaPowerSupply.inx
@@ -9,25 +9,33 @@
         <param name="flipswitch_diameter" type="float" precision="2" max="9999" gui-text="flipswitch_diameter" gui-description="diameter of the flipswitch mounting hole">6.3</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./MakitaPowerSupply-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.NemaMount.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.NemaMount.inx
index 59b51ec..d301163 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.NemaMount.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.NemaMount.inx
@@ -18,25 +18,33 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./NemaMount-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.NemaPattern.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.NemaPattern.inx
index 21b740e..6071797 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.NemaPattern.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.NemaPattern.inx
@@ -19,25 +19,33 @@
         <param name="screwholes" type="float" precision="2" max="9999" gui-text="screwholes" gui-description="Size of the screw holes in mm - 0 for default size">0.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./NemaPattern-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.NotesHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.NotesHolder.inx
index e811b40..a49c58c 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.NotesHolder.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.NotesHolder.inx
@@ -8,40 +8,48 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">78</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">78</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">35</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
         <param name="opening" type="float" precision="2" max="9999" gui-text="opening" gui-description="percent of front that's open">40</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="int" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./NotesHolder-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.OpenBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.OpenBox.inx
index 286500d..993a391 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.OpenBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.OpenBox.inx
@@ -8,32 +8,40 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
-      <param name="edgetype" type="enum" gui-text="edgetype" gui-description="edge type">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="edgetype" type="optiongroup" appearance="combo" gui-text="edgetype" gui-description="edge type">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
       </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./OpenBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.OrganPipe.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.OrganPipe.inx
index 6510ff2..1a6aac7 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.OrganPipe.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.OrganPipe.inx
@@ -34,25 +34,33 @@
         <param name="stopped" type="bool" gui-text="stopped" gui-description="pipe is closed at the top">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">3.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">3.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./OrganPipe-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.OttoBody.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.OttoBody.inx
index 35666e8..629bf93 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.OttoBody.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.OttoBody.inx
@@ -5,29 +5,39 @@
 <param name="generator" type="string" gui-hidden="true">ottobody</param>
 <param name="tab" type="notebook">
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Chest Hinges">
-        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place">1.0</param>
-        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge">2.0</param>
+        <param name="ChestHinge_finger_joints_on_box" type="bool" gui-text="finger_joints_on_box" gui-description="whether to include finger joints on the edge with the box">false</param>
+        <param name="ChestHinge_finger_joints_on_lid" type="bool" gui-text="finger_joints_on_lid" gui-description="whether to include finger joints on the edge with the lid">false</param>
+        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1.0</param>
+        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge (multiples of thickness)">2.0</param>
         <param name="ChestHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="play">0.1</param>
     </page>
     <page name="tab_4" gui-text="Example">
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.OttoLegs.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.OttoLegs.inx
index 5c9f955..b4e4f18 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.OttoLegs.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.OttoLegs.inx
@@ -10,25 +10,33 @@
         <param name="length" type="float" precision="2" max="9999" gui-text="length" gui-description="length of legs (34mm min)">34.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">1.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">1.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./OttoLegs-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.OttoSoles.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.OttoSoles.inx
index 24b8a7a..db3713c 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.OttoSoles.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.OttoSoles.inx
@@ -5,19 +5,24 @@
 <param name="generator" type="string" gui-hidden="true">ottosoles</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="OttoSoles">
-        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">56.0</param>
-        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">36.0</param>
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">58.0</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">38.0</param>
         <param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of sole stripe">4.0</param>
         <param name="chamfer" type="float" precision="2" max="9999" gui-text="chamfer" gui-description="chamfer at the corners">5.0</param>
         <param name="num" type="int" max="9999" gui-text="num" gui-description="number of soles">2</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./OttoSoles-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.PaintStorage.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.PaintStorage.inx
index 235ce02..ec24629 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.PaintStorage.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.PaintStorage.inx
@@ -14,31 +14,39 @@
         <param name="drawer" type="bool" gui-text="drawer" gui-description="Create a stackable drawer instead">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./PaintStorage-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.PaperBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.PaperBox.inx
index f765064..f284bfe 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.PaperBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.PaperBox.inx
@@ -8,21 +8,31 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100.0</param>
+        <param name="design" type="optiongroup" appearance="combo" gui-text="design" gui-description="different design for paper consumption optimization. The tuckbox also has locking cut for its lid.">
+            <option value="automatic">automatic</option>
+            <option value="widebox">widebox</option>
+            <option value="tuckbox">tuckbox</option>
+    </param>
         <param name="lid_heigth" type="float" precision="2" max="9999" gui-text="lid_heigth" gui-description="Height of the lid (part which goes inside the box)">15</param>
         <param name="lid_radius" type="float" precision="2" max="9999" gui-text="lid_radius" gui-description="Angle, in radius, of the round corner of the lid">7</param>
         <param name="lid_sides" type="float" precision="2" max="9999" gui-text="lid_sides" gui-description="Width of the two sides upon which goes the lid">20</param>
-        <param name="margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="Space between the two folded sides to glue">0.5</param>
+        <param name="margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="Margin for the glued sides">0</param>
         <param name="mark_length" type="float" precision="2" max="9999" gui-text="mark_length" gui-description="Length of the folding outside mark">1.5</param>
         <param name="tab_angle_rad" type="float" precision="2" max="9999" gui-text="tab_angle_rad" gui-description="Angle (in radian) of the sides which are to be glued inside the box">0.07982998571223732</param>
         <param name="finger_hole_diameter" type="float" precision="2" max="9999" gui-text="finger_hole_diameter" gui-description="Diameter of the hole to help catch the lid">15</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./PaperBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.PhoneHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.PhoneHolder.inx
index 8f89867..ea68e21 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.PhoneHolder.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.PhoneHolder.inx
@@ -14,25 +14,33 @@
         <param name="bottom_support_spacing" type="float" precision="2" max="9999" gui-text="bottom_support_spacing" gui-description="Spacing between the two bottom support. Choose a value big enough for the charging cable, without getting in the way of other ports.">16</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./PhoneHolder-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary.inx
index 0a2d610..86e809e 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary.inx
@@ -13,12 +13,17 @@
         <param name="shaft" type="float" precision="2" max="9999" gui-text="shaft" gui-description="diameter of the shaft">6.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Planetary-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary2.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary2.inx
index e545fe9..2d07a92 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary2.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Planetary2.inx
@@ -36,19 +36,24 @@
         <param name="planetteeth" type="int" max="9999" gui-text="planetteeth" gui-description="number of teeth on planets">20</param>
         <param name="maxplanets" type="int" max="9999" gui-text="maxplanets" gui-description="limit the number of planets (0 for as much as fit)">0</param>
         <param name="deltateeth" type="int" max="9999" gui-text="deltateeth" gui-description="enable secondary ring with given delta to the ring gear">1</param>
-        <param name="modulus" type="float" precision="2" max="9999" gui-text="modulus" gui-description="modulus of the theeth in mm">3</param>
+        <param name="modulus" type="float" precision="2" max="9999" gui-text="modulus" gui-description="modulus of the theeth in mm">1.0</param>
         <param name="shaft" type="float" precision="2" max="9999" gui-text="shaft" gui-description="diameter of the shaft">6.0</param>
         <param name="screw1" type="float" precision="2" max="9999" gui-text="screw1" gui-description="diameter of lower part of the screw hole">2.4</param>
         <param name="screw2" type="float" precision="2" max="9999" gui-text="screw2" gui-description="diameter of upper part of the screw hole">4.0</param>
         <param name="pinsize" type="float" precision="2" max="9999" gui-text="pinsize" gui-description="diameter of alignment pins">3.1</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Planetary2-thumb.jpg</image>
@@ -59,7 +64,7 @@
     <object-type>all</object-type>
     <effects-menu>
         <submenu name="FabLab Chemnitz Boxes.py">
-            <submenu name="Parts and Samples"/>
+            <submenu name="Unstable"/>
         </submenu>
     </effects-menu>
 </effect>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Platonic.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Platonic.inx
index 1c03c91..6357648 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Platonic.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Platonic.inx
@@ -6,7 +6,7 @@
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="Platonic">
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">60</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="type" type="optiongroup" appearance="combo" gui-text="type" gui-description="type of platonic solid">
             <option value="tetrahedron">tetrahedron</option>
             <option value="cube">cube</option>
@@ -16,25 +16,33 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="int" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Platonic-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.PoleHook.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.PoleHook.inx
index 481a195..65b9003 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.PoleHook.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.PoleHook.inx
@@ -12,25 +12,33 @@
         <param name="pin" type="float" precision="2" max="9999" gui-text="pin" gui-description="diameter of the pin in mm">4.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./PoleHook-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Pulley.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Pulley.inx
index 7f514a0..8210590 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Pulley.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Pulley.inx
@@ -28,12 +28,17 @@
         <param name="top" type="float" precision="2" max="9999" gui-text="top" gui-description="overlap of top rim (zero for none)">0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Pulley-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Rack10Box.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Rack10Box.inx
index f5eba29..db6dc08 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Rack10Box.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Rack10Box.inx
@@ -29,25 +29,33 @@
         <param name="d2" type="float" precision="2" max="9999" gui-text="d2" gui-description="Diameter of the lid screw holes in mm">3.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Rack10Box-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19Box.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19Box.inx
index 0755620..5bb9c90 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19Box.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19Box.inx
@@ -29,25 +29,33 @@
         <param name="d2" type="float" precision="2" max="9999" gui-text="d2" gui-description="Diameter of the lid screw holes in mm">3.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Rack19Box-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19HalfWidth.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19HalfWidth.inx
index 64bc99f..9afb4ff 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19HalfWidth.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Rack19HalfWidth.inx
@@ -11,12 +11,17 @@
         <param name="deepz" type="float" precision="2" max="9999" gui-text="deepz" gui-description="depth of the longer (screwed to another half sized thing) side">124</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Rack19HalfWidth-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RackBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RackBox.inx
index 1628078..ed2bcc4 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.RackBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RackBox.inx
@@ -8,7 +8,7 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="triangle" type="float" precision="2" max="9999" gui-text="triangle" gui-description="Sides of the triangles holding the lid in mm">25.0</param>
         <param name="d1" type="float" precision="2" max="9999" gui-text="d1" gui-description="Diameter of the inner lid screw holes in mm">2.0</param>
         <param name="d2" type="float" precision="2" max="9999" gui-text="d2" gui-description="Diameter of the lid screw holes in mm">3.0</param>
@@ -16,25 +16,33 @@
         <param name="holedist" type="float" precision="2" max="9999" gui-text="holedist" gui-description="Distance of the screw holes from the wall in mm">7.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1.2</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.2</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./RackBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RectangularWall.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RectangularWall.inx
index b95fcdf..3cc4177 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.RectangularWall.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RectangularWall.inx
@@ -7,162 +7,175 @@
     <page name="tab_0" gui-text="RectangularWall">
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="c">c Abstract Edge Class</item>
-        <item value="C">C Abstract Edge Class</item>
-        <item value="d">d Edge (parallel slot wall Holes)</item>
-        <item value="D">D Edge (parallel slot wall Holes)</item>
-        <item value="e">e Straight Edge</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="g">g Corrugated edge useful as an gipping area</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="I">I Edge with hinge pin</item>
-        <item value="j">j Straight edge with hinge eye (other end)</item>
-        <item value="J">J Edge with hinge pin (other end)</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="K">K Edge with hinge pin (both ends)</item>
-        <item value="l">l Edge for slide on lid (back)</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="m">m Edge for slide on lid (left)</item>
-        <item value="M">M Edge for slide on lid (box left)</item>
-        <item value="n">n Edge for slide on lid (right)</item>
-        <item value="N">N Edge for slide on lid (box right)</item>
-        <item value="o">o Edge with chest hinge</item>
-        <item value="O">O Edge with chest hinge (other end)</item>
-        <item value="p">p Edge with chest hinge</item>
-        <item value="P">P Edge with chest hinge (other end)</item>
-        <item value="q">q Edge with pins for an chest hinge</item>
-        <item value="Q">Q Edge opposing a chest hinge</item>
-        <item value="R">R Rack (and pinion) Edge</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="u">u Edge with cabinet hinges</item>
-        <item value="U">U Edge with cabinet hinges top side</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="V">V Edge with cabinet hinges 90° lid</item>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="c">c Click on (bottom side)</option>
+            <option value="C">C Click on (top)</option>
+            <option value="d">d Dove Tail Joint</option>
+            <option value="D">D Dove Tail Joint (opposing side)</option>
+            <option value="e">e Straight Edge</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="g">g Corrugated edge useful as an gipping area</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="I">I Edge with hinge pin</option>
+            <option value="j">j Straight edge with hinge eye (other end)</option>
+            <option value="J">J Edge with hinge pin (other end)</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="K">K Edge with hinge pin (both ends)</option>
+            <option value="l">l Edge for slide on lid (back)</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="m">m Edge for slide on lid (left)</option>
+            <option value="M">M Edge for slide on lid (box left)</option>
+            <option value="n">n Edge for slide on lid (right)</option>
+            <option value="N">N Edge for slide on lid (box right)</option>
+            <option value="o">o Edge with chest hinge</option>
+            <option value="O">O Edge with chest hinge (other end)</option>
+            <option value="p">p Edge with chest hinge</option>
+            <option value="P">P Edge with chest hinge (other end)</option>
+            <option value="q">q Edge with pins for an chest hinge</option>
+            <option value="Q">Q Edge opposing a chest hinge</option>
+            <option value="R">R Rack (and pinion) Edge</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="š">š Stackable feet (bottom)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="u">u Edge with cabinet hinges</option>
+            <option value="U">U Edge with cabinet hinges top side</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="V">V Edge with cabinet hinges 90° lid</option>
       </param>
-      <param name="right_edge" type="enum" gui-text="right_edge" gui-description="edge type for right edge">
-        <item value="c">c Abstract Edge Class</item>
-        <item value="C">C Abstract Edge Class</item>
-        <item value="d">d Edge (parallel slot wall Holes)</item>
-        <item value="D">D Edge (parallel slot wall Holes)</item>
-        <item value="e">e Straight Edge</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="g">g Corrugated edge useful as an gipping area</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="I">I Edge with hinge pin</item>
-        <item value="j">j Straight edge with hinge eye (other end)</item>
-        <item value="J">J Edge with hinge pin (other end)</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="K">K Edge with hinge pin (both ends)</item>
-        <item value="l">l Edge for slide on lid (back)</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="m">m Edge for slide on lid (left)</item>
-        <item value="M">M Edge for slide on lid (box left)</item>
-        <item value="n">n Edge for slide on lid (right)</item>
-        <item value="N">N Edge for slide on lid (box right)</item>
-        <item value="o">o Edge with chest hinge</item>
-        <item value="O">O Edge with chest hinge (other end)</item>
-        <item value="p">p Edge with chest hinge</item>
-        <item value="P">P Edge with chest hinge (other end)</item>
-        <item value="q">q Edge with pins for an chest hinge</item>
-        <item value="Q">Q Edge opposing a chest hinge</item>
-        <item value="R">R Rack (and pinion) Edge</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="u">u Edge with cabinet hinges</item>
-        <item value="U">U Edge with cabinet hinges top side</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="V">V Edge with cabinet hinges 90° lid</item>
+        <param name="right_edge" type="optiongroup" appearance="combo" gui-text="right_edge" gui-description="edge type for right edge">
+            <option value="c">c Click on (bottom side)</option>
+            <option value="C">C Click on (top)</option>
+            <option value="d">d Dove Tail Joint</option>
+            <option value="D">D Dove Tail Joint (opposing side)</option>
+            <option value="e">e Straight Edge</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="g">g Corrugated edge useful as an gipping area</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="I">I Edge with hinge pin</option>
+            <option value="j">j Straight edge with hinge eye (other end)</option>
+            <option value="J">J Edge with hinge pin (other end)</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="K">K Edge with hinge pin (both ends)</option>
+            <option value="l">l Edge for slide on lid (back)</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="m">m Edge for slide on lid (left)</option>
+            <option value="M">M Edge for slide on lid (box left)</option>
+            <option value="n">n Edge for slide on lid (right)</option>
+            <option value="N">N Edge for slide on lid (box right)</option>
+            <option value="o">o Edge with chest hinge</option>
+            <option value="O">O Edge with chest hinge (other end)</option>
+            <option value="p">p Edge with chest hinge</option>
+            <option value="P">P Edge with chest hinge (other end)</option>
+            <option value="q">q Edge with pins for an chest hinge</option>
+            <option value="Q">Q Edge opposing a chest hinge</option>
+            <option value="R">R Rack (and pinion) Edge</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="š">š Stackable feet (bottom)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="u">u Edge with cabinet hinges</option>
+            <option value="U">U Edge with cabinet hinges top side</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="V">V Edge with cabinet hinges 90° lid</option>
       </param>
-      <param name="top_edge" type="enum" gui-text="top_edge" gui-description="edge type for top edge">
-        <item value="c">c Abstract Edge Class</item>
-        <item value="C">C Abstract Edge Class</item>
-        <item value="d">d Edge (parallel slot wall Holes)</item>
-        <item value="D">D Edge (parallel slot wall Holes)</item>
-        <item value="e">e Straight Edge</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="g">g Corrugated edge useful as an gipping area</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="I">I Edge with hinge pin</item>
-        <item value="j">j Straight edge with hinge eye (other end)</item>
-        <item value="J">J Edge with hinge pin (other end)</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="K">K Edge with hinge pin (both ends)</item>
-        <item value="l">l Edge for slide on lid (back)</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="m">m Edge for slide on lid (left)</item>
-        <item value="M">M Edge for slide on lid (box left)</item>
-        <item value="n">n Edge for slide on lid (right)</item>
-        <item value="N">N Edge for slide on lid (box right)</item>
-        <item value="o">o Edge with chest hinge</item>
-        <item value="O">O Edge with chest hinge (other end)</item>
-        <item value="p">p Edge with chest hinge</item>
-        <item value="P">P Edge with chest hinge (other end)</item>
-        <item value="q">q Edge with pins for an chest hinge</item>
-        <item value="Q">Q Edge opposing a chest hinge</item>
-        <item value="R">R Rack (and pinion) Edge</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="u">u Edge with cabinet hinges</item>
-        <item value="U">U Edge with cabinet hinges top side</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="V">V Edge with cabinet hinges 90° lid</item>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="c">c Click on (bottom side)</option>
+            <option value="C">C Click on (top)</option>
+            <option value="d">d Dove Tail Joint</option>
+            <option value="D">D Dove Tail Joint (opposing side)</option>
+            <option value="e">e Straight Edge</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="g">g Corrugated edge useful as an gipping area</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="I">I Edge with hinge pin</option>
+            <option value="j">j Straight edge with hinge eye (other end)</option>
+            <option value="J">J Edge with hinge pin (other end)</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="K">K Edge with hinge pin (both ends)</option>
+            <option value="l">l Edge for slide on lid (back)</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="m">m Edge for slide on lid (left)</option>
+            <option value="M">M Edge for slide on lid (box left)</option>
+            <option value="n">n Edge for slide on lid (right)</option>
+            <option value="N">N Edge for slide on lid (box right)</option>
+            <option value="o">o Edge with chest hinge</option>
+            <option value="O">O Edge with chest hinge (other end)</option>
+            <option value="p">p Edge with chest hinge</option>
+            <option value="P">P Edge with chest hinge (other end)</option>
+            <option value="q">q Edge with pins for an chest hinge</option>
+            <option value="Q">Q Edge opposing a chest hinge</option>
+            <option value="R">R Rack (and pinion) Edge</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="š">š Stackable feet (bottom)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="u">u Edge with cabinet hinges</option>
+            <option value="U">U Edge with cabinet hinges top side</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="V">V Edge with cabinet hinges 90° lid</option>
       </param>
-      <param name="left_edge" type="enum" gui-text="left_edge" gui-description="edge type for left edge">
-        <item value="c">c Abstract Edge Class</item>
-        <item value="C">C Abstract Edge Class</item>
-        <item value="d">d Edge (parallel slot wall Holes)</item>
-        <item value="D">D Edge (parallel slot wall Holes)</item>
-        <item value="e">e Straight Edge</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="g">g Corrugated edge useful as an gipping area</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="I">I Edge with hinge pin</item>
-        <item value="j">j Straight edge with hinge eye (other end)</item>
-        <item value="J">J Edge with hinge pin (other end)</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="K">K Edge with hinge pin (both ends)</item>
-        <item value="l">l Edge for slide on lid (back)</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="m">m Edge for slide on lid (left)</item>
-        <item value="M">M Edge for slide on lid (box left)</item>
-        <item value="n">n Edge for slide on lid (right)</item>
-        <item value="N">N Edge for slide on lid (box right)</item>
-        <item value="o">o Edge with chest hinge</item>
-        <item value="O">O Edge with chest hinge (other end)</item>
-        <item value="p">p Edge with chest hinge</item>
-        <item value="P">P Edge with chest hinge (other end)</item>
-        <item value="q">q Edge with pins for an chest hinge</item>
-        <item value="Q">Q Edge opposing a chest hinge</item>
-        <item value="R">R Rack (and pinion) Edge</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="u">u Edge with cabinet hinges</item>
-        <item value="U">U Edge with cabinet hinges top side</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="V">V Edge with cabinet hinges 90° lid</item>
+        <param name="left_edge" type="optiongroup" appearance="combo" gui-text="left_edge" gui-description="edge type for left edge">
+            <option value="c">c Click on (bottom side)</option>
+            <option value="C">C Click on (top)</option>
+            <option value="d">d Dove Tail Joint</option>
+            <option value="D">D Dove Tail Joint (opposing side)</option>
+            <option value="e">e Straight Edge</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="g">g Corrugated edge useful as an gipping area</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="I">I Edge with hinge pin</option>
+            <option value="j">j Straight edge with hinge eye (other end)</option>
+            <option value="J">J Edge with hinge pin (other end)</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="K">K Edge with hinge pin (both ends)</option>
+            <option value="l">l Edge for slide on lid (back)</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="m">m Edge for slide on lid (left)</option>
+            <option value="M">M Edge for slide on lid (box left)</option>
+            <option value="n">n Edge for slide on lid (right)</option>
+            <option value="N">N Edge for slide on lid (box right)</option>
+            <option value="o">o Edge with chest hinge</option>
+            <option value="O">O Edge with chest hinge (other end)</option>
+            <option value="p">p Edge with chest hinge</option>
+            <option value="P">P Edge with chest hinge (other end)</option>
+            <option value="q">q Edge with pins for an chest hinge</option>
+            <option value="Q">Q Edge opposing a chest hinge</option>
+            <option value="R">R Rack (and pinion) Edge</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="š">š Stackable feet (bottom)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="u">u Edge with cabinet hinges</option>
+            <option value="U">U Edge with cabinet hinges top side</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="V">V Edge with cabinet hinges 90° lid</option>
       </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Cabinet Hinges">
         <param name="CabinetHinge_bore" type="float" precision="2" max="9999" gui-text="bore" gui-description="diameter of the pin hole in mm">3.2</param>
@@ -172,33 +185,36 @@
             <option value="inside">inside</option>
             <option value="outside">outside</option>
     </param>
-        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (in multiples of thickness)">1.5</param>
-        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (in multiples of thickness)">0.05</param>
-        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge">2.0</param>
+        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (multiples of thickness)">1.5</param>
+        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (multiples of thickness)">0.05</param>
+        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge (multiples of thickness)">2.0</param>
     </page>
     <page name="tab_3" gui-text="Click-on Lids">
         <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
-        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom">0.1</param>
-        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks">3.0</param>
+        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
+        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_4" gui-text="Dove Tail Joints">
         <param name="DoveTail_angle" type="int" max="9999" gui-text="angle" gui-description="how much should fingers widen (-80 to 80)">50</param>
-        <param name="DoveTail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="how far the dove tails stick out of/into the edge">1.5</param>
-        <param name="DoveTail_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius used on all four corners">0.2</param>
-        <param name="DoveTail_size" type="int" max="9999" gui-text="size" gui-description="from one middle of a dove tail to another">3</param>
+        <param name="DoveTail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="how far the dove tails stick out of/into the edge (multiples of thickness)">1.5</param>
+        <param name="DoveTail_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius used on all four corners (multiples of thickness)">0.2</param>
+        <param name="DoveTail_size" type="int" max="9999" gui-text="size" gui-description="from one middle of a dove tail to another (multiples of thickness)">3</param>
     </page>
     <page name="tab_5" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_6" gui-text="rack (and pinion) edge">
         <param name="Gear_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="pressure angle">20.0</param>
@@ -222,13 +238,15 @@
             <option value="outset">outset</option>
             <option value="flush">flush</option>
     </param>
-        <param name="Hinge_axle" type="int" max="9999" gui-text="axle" gui-description="diameter of the pin hole">2</param>
-        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids">0</param>
-        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place">1</param>
+        <param name="Hinge_axle" type="float" precision="2" max="9999" gui-text="axle" gui-description="diameter of the pin hole (multiples of thickness)">2.0</param>
+        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
+        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
     </page>
     <page name="tab_9" gui-text="Chest Hinges">
-        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place">1.0</param>
-        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge">2.0</param>
+        <param name="ChestHinge_finger_joints_on_box" type="bool" gui-text="finger_joints_on_box" gui-description="whether to include finger joints on the edge with the box">false</param>
+        <param name="ChestHinge_finger_joints_on_lid" type="bool" gui-text="finger_joints_on_lid" gui-description="whether to include finger joints on the edge with the lid">false</param>
+        <param name="ChestHinge_hinge_strength" type="float" precision="2" max="9999" gui-text="hinge_strength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1.0</param>
+        <param name="ChestHinge_pin_height" type="float" precision="2" max="9999" gui-text="pin_height" gui-description="radius of the disc rotating in the hinge (multiples of thickness)">2.0</param>
         <param name="ChestHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="play">0.1</param>
     </page>
     <page name="tab_10" gui-text="Slide-on Lids">
@@ -244,19 +262,22 @@
         <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_11" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_12" gui-text="Example">
         <image>./RectangularWall-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RegularBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RegularBox.inx
index 026571e..2cdf68d 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.RegularBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RegularBox.inx
@@ -6,7 +6,7 @@
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="RegularBox">
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="inner radius if the box (at the corners)">50.0</param>
         <param name="n" type="int" max="9999" gui-text="n" gui-description="number of sides">5</param>
         <param name="top" type="optiongroup" appearance="combo" gui-text="top" gui-description="style of the top and lid">
@@ -21,25 +21,33 @@
         <param name="alignment_pins" type="float" precision="2" max="9999" gui-text="alignment_pins" gui-description="diameter of the alignment pins for bayonet lid">1.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./RegularBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RegularStarBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RegularStarBox.inx
new file mode 100644
index 0000000..5e67d6b
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RegularStarBox.inx
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>RegularStarBox</name>
+<id>info.festi.boxes.py.RegularStarBox</id>
+<param name="generator" type="string" gui-hidden="true">regularstarbox</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="RegularStarBox">
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="inner radius if the box (center to corners)">50.0</param>
+        <param name="n" type="optiongroup" appearance="combo" gui-text="n" gui-description="number of sides">
+            <option value="3">3</option>
+            <option value="4">4</option>
+            <option value="5">5</option>
+    </param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Example">
+        <image>./RegularStarBox-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/RegularStarBox</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Boxes"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RobotArm.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RobotArm.inx
index 626eb8a..6949094 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.RobotArm.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RobotArm.inx
@@ -82,25 +82,33 @@
         <param name="length5" type="float" precision="2" max="9999" gui-text="length5" gui-description="length of segment axle to axle">50.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./RobotArm-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Rotary.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Rotary.inx
index bdea70b..088eb25 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Rotary.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Rotary.inx
@@ -13,25 +13,33 @@
         <param name="beamheight" type="float" precision="2" max="9999" gui-text="beamheight" gui-description="height of the (aluminium) profile connecting the parts">7.1</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./Rotary-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RoundedBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RoundedBox.inx
index 720a343..88c0c96 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.RoundedBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RoundedBox.inx
@@ -5,21 +5,21 @@
 <param name="generator" type="string" gui-hidden="true">roundedbox</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="RoundedBox">
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">100.0</param>
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
-        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="Radius of the corners in mm">15</param>
-        <param name="wallpieces" type="optiongroup" appearance="combo" gui-text="wallpieces" gui-description="# pieces of outer wall">
+        <param name="wallpieces" type="optiongroup" appearance="combo" gui-text="wallpieces" gui-description="number of pieces for outer wall">
             <option value="1">1</option>
             <option value="2">2</option>
             <option value="3">3</option>
             <option value="4">4</option>
     </param>
-      <param name="edge_style" type="enum" gui-text="edge_style" gui-description="edge type for top and bottom edges">
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
+        <param name="edge_style" type="optiongroup" appearance="combo" gui-text="edge_style" gui-description="edge type for top and bottom edges">
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
       </param>
         <param name="top" type="optiongroup" appearance="combo" gui-text="top" gui-description="style of the top and lid">
             <option value="closed">closed</option>
@@ -28,33 +28,47 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_3" gui-text="Flex">
+    <page name="tab_3" gui-text="Dove Tail Joints">
+        <param name="DoveTail_angle" type="int" max="9999" gui-text="angle" gui-description="how much should fingers widen (-80 to 80)">50</param>
+        <param name="DoveTail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="how far the dove tails stick out of/into the edge (multiples of thickness)">1.5</param>
+        <param name="DoveTail_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius used on all four corners (multiples of thickness)">0.2</param>
+        <param name="DoveTail_size" type="int" max="9999" gui-text="size" gui-description="from one middle of a dove tail to another (multiples of thickness)">3</param>
+    </page>
+    <page name="tab_4" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
-    <page name="tab_4" gui-text="Example">
+    <page name="tab_5" gui-text="Example">
         <image>./RoundedBox-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.RoyalGame.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.RoyalGame.inx
index 152fcaa..b6d5775 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.RoyalGame.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.RoyalGame.inx
@@ -8,25 +8,33 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">200</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./RoyalGame-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.SBCMicroRack.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.SBCMicroRack.inx
index f52093f..bac3d01 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.SBCMicroRack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.SBCMicroRack.inx
@@ -21,31 +21,39 @@
         <param name="switch" type="bool" gui-text="switch" gui-description="adds an additional vertical segment to hold the switch in place, works best w/ --stable">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./SBCMicroRack-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.ShutterBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.ShutterBox.inx
index a5a2bea..4cfe83f 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.ShutterBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.ShutterBox.inx
@@ -15,31 +15,39 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">2.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.75</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">2.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.75</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./ShutterBox-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.SideDoorHousing.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.SideDoorHousing.inx
index 19bdbe1..8969a26 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.SideDoorHousing.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.SideDoorHousing.inx
@@ -8,40 +8,48 @@
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
         <param name="double_door" type="bool" gui-text="double_door" gui-description="allow removing the backwall, too">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./SideDoorHousing-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Silverware.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Silverware.inx
index 0730631..8caa05f 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Silverware.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Silverware.inx
@@ -13,12 +13,17 @@
         <param name="handlewidth" type="int" max="9999" gui-text="handlewidth" gui-description="Width of the handle">120</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Silverware-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.SlidingDrawer.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.SlidingDrawer.inx
new file mode 100644
index 0000000..e3cd0ec
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.SlidingDrawer.inx
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>SlidingDrawer</name>
+<id>info.festi.boxes.py.SlidingDrawer</id>
+<param name="generator" type="string" gui-hidden="true">slidingdrawer</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="SlidingDrawer">
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">60</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">30</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="play" type="float" precision="2" max="9999" gui-text="play" gui-description="play between the two parts as multipleof the wall thickness">0.15</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="Grooved Edge">
+        <param name="Grooved_arc_angle" type="int" max="9999" gui-text="arc_angle" gui-description="the angle of arc cuts">120</param>
+        <param name="Grooved_gap" type="float" precision="2" max="9999" gui-text="gap" gui-description="the gap between grooves (fraction of the edge length)">0.1</param>
+        <param name="Grooved_interleave" type="bool" gui-text="interleave" gui-description="alternate the direction of grooves">false</param>
+        <param name="Grooved_inverse" type="bool" gui-text="inverse" gui-description="invert the groove directions">false</param>
+        <param name="Grooved_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without grooves (fraction of the edge length)">0.3</param>
+        <param name="Grooved_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="the style of grooves">
+            <option value="arc">arc</option>
+            <option value="flat">flat</option>
+            <option value="triangle">triangle</option>
+            <option value="softarc">softarc</option>
+    </param>
+        <param name="Grooved_tri_angle" type="int" max="9999" gui-text="tri_angle" gui-description="the angle of triangular cuts">30</param>
+        <param name="Grooved_width" type="float" precision="2" max="9999" gui-text="width" gui-description="the width of each groove (fraction of the edge length)">0.4</param>
+    </page>
+    <page name="tab_4" gui-text="Example">
+        <image>./SlidingDrawer-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/SlidingDrawer</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="Boxes"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.SpicesRack.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.SpicesRack.inx
index e4f783e..b1570ae 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.SpicesRack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.SpicesRack.inx
@@ -14,25 +14,33 @@
         <param name="feet" type="bool" gui-text="feet" gui-description="add feet so the rack can stand on the ground">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">1.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">1.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./SpicesRack-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.Stachel.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.Stachel.inx
index c5171d0..076359a 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.Stachel.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.Stachel.inx
@@ -10,12 +10,17 @@
         <param name="wall" type="float" precision="2" max="9999" gui-text="wall" gui-description="width of the surrounding wall in mm">7.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./Stachel-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.StorageRack.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.StorageRack.inx
index 8cfb021..1471084 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.StorageRack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.StorageRack.inx
@@ -8,46 +8,56 @@
         <param name="depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="depth of the rack">200</param>
         <param name="rail" type="float" precision="2" max="9999" gui-text="rail" gui-description="depth of the rack">30</param>
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
-        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm. See --sy for format">50*3</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
-      <param name="top_edge" type="enum" gui-text="top_edge" gui-description="edge type for top edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="e">e Straight Edge</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
       </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Example">
         <image>./StorageRack-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.StorageShelf.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.StorageShelf.inx
index ecc89ca..53eb8b2 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.StorageShelf.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.StorageShelf.inx
@@ -6,58 +6,70 @@
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="StorageShelf">
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>50*3</param>
-        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm. See --sy for format">50*3</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
-      <param name="top_edge" type="enum" gui-text="top_edge" gui-description="edge type for top edge">
-        <item value="e">e Straight Edge</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="c">c Abstract Edge Class</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="t">t Triangle for handle</item>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="c">c Click on (bottom side)</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="t">t Triangle for handle</option>
+            <option value="G">G Edge with pear shaped mounting holes</option>
+            <option value="y">y Handle for e.g. a drawer</option>
+            <option value="Y">Y Handle with holes for parallel finger joint</option>
       </param>
-        <param name="retainer" type="float" precision="2" max="9999" gui-text="retainer" gui-description="height of wall atthe front edges">0.0</param>
+        <param name="retainer" type="float" precision="2" max="9999" gui-text="retainer" gui-description="height of retaining wall at the front edges">0.0</param>
         <param name="retainer_hole_edge" type="bool" gui-text="retainer_hole_edge" gui-description="use finger hole edge for retainer walls">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Hinges and HingePins">
         <param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
@@ -67,9 +79,9 @@
             <option value="outset">outset</option>
             <option value="flush">flush</option>
     </param>
-        <param name="Hinge_axle" type="int" max="9999" gui-text="axle" gui-description="diameter of the pin hole">2</param>
-        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids">0</param>
-        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place">1</param>
+        <param name="Hinge_axle" type="float" precision="2" max="9999" gui-text="axle" gui-description="diameter of the pin hole (multiples of thickness)">2.0</param>
+        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
+        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
     </page>
     <page name="tab_5" gui-text="Cabinet Hinges">
         <param name="CabinetHinge_bore" type="float" precision="2" max="9999" gui-text="bore" gui-description="diameter of the pin hole in mm">3.2</param>
@@ -79,9 +91,9 @@
             <option value="inside">inside</option>
             <option value="outside">outside</option>
     </param>
-        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (in multiples of thickness)">1.5</param>
-        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (in multiples of thickness)">0.05</param>
-        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge">2.0</param>
+        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (multiples of thickness)">1.5</param>
+        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (multiples of thickness)">0.05</param>
+        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge (multiples of thickness)">2.0</param>
     </page>
     <page name="tab_6" gui-text="Slide-on Lids">
         <param name="Lid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
@@ -96,26 +108,54 @@
         <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_7" gui-text="Click-on Lids">
         <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
-        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom">0.1</param>
-        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks">3.0</param>
+        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
+        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_8" gui-text="RoundedTriangleEdge">
-        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">150.0</param>
+        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">50.0</param>
         <param name="RoundedTriangleEdge_r_hole" type="float" precision="2" max="9999" gui-text="r_hole" gui-description="radius of hole">2.0</param>
         <param name="RoundedTriangleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of top corner">30.0</param>
-        <param name="RoundedTriangleEdge_outset" type="int" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge">1</param>
+        <param name="RoundedTriangleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_9" gui-text="Example">
+    <page name="tab_9" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.125</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">2</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_10" gui-text="HandleEdge">
+        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+        <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
+        <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
+        <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
+        <param name="HandleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of corners in mm">10.0</param>
+        <param name="HandleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the handle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_11" gui-text="Example">
         <image>./StorageShelf-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.TrafficLight.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.TrafficLight.inx
index e421c53..d0c5ea1 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.TrafficLight.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.TrafficLight.inx
@@ -6,31 +6,40 @@
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="TrafficLight">
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100.0</param>
+        <param name="hole_dD" type="string" gui-text="hole_dD" gui-description="mounting hole diameter (shaft:head) in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#mounting-holes)">3.5:6.5</param>
         <param name="depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="inner depth not including the shades">100</param>
         <param name="shades" type="float" precision="2" max="9999" gui-text="shades" gui-description="depth of the shaders">50</param>
         <param name="n" type="int" max="9999" gui-text="n" gui-description="number of lights">3</param>
         <param name="upright" type="bool" gui-text="upright" gui-description="stack lights upright (or side by side)">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./TrafficLight-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.TrayInsert.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.TrayInsert.inx
index 031b148..f569bdc 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.TrayInsert.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.TrayInsert.inx
@@ -5,18 +5,23 @@
 <param name="generator" type="string" gui-hidden="true">trayinsert</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="TrayInsert">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">50*3</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>50*3</param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./TrayInsert-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.TriangleLamp.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.TriangleLamp.inx
index b1c240c..d259dfe 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.TriangleLamp.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.TriangleLamp.inx
@@ -13,25 +13,33 @@
         <param name="sharpcorners" type="bool" gui-text="sharpcorners" gui-description="extend walls for 45° corners. Requires grinding a 22.5° bevel.">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">3.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">3.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./TriangleLamp-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.TwoPiece.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.TwoPiece.inx
index 2f6dbac..8fad0d7 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.TwoPiece.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.TwoPiece.inx
@@ -9,29 +9,37 @@
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
         <param name="hi" type="float" precision="2" max="9999" gui-text="hi" gui-description="inner height of inner walls in mm (unless outside selected)(leave to zero for same as outer walls)">0.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="play" type="float" precision="2" max="9999" gui-text="play" gui-description="play between the two parts as multipleof the wall thickness">0.15</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./TwoPiece-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.TypeTray.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.TypeTray.inx
index 5da85d3..2d8ece6 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.TypeTray.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.TypeTray.inx
@@ -5,60 +5,75 @@
 <param name="generator" type="string" gui-hidden="true">typetray</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="TypeTray">
-        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm. See --sy for format">50*3</param>
-        <param name="sy" type="string" gui-text="sy" gui-description='sections back to front in mm. Possible formats: overallwidth/numberof sections e.g. "250/5"; sectionwidth*numberofsections e.g. "50*5"; section widths separated by ":" e.g. "30:25.5:70'>50*3</param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
         <param name="hi" type="float" precision="2" max="9999" gui-text="hi" gui-description="inner height of inner walls in mm (unless outside selected)(leave to zero for same as outer walls)">0.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
-      <param name="top_edge" type="enum" gui-text="top_edge" gui-description="edge type for top edge">
-        <item value="e">e Straight Edge</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="c">c Abstract Edge Class</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="t">t Triangle for handle</item>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="c">c Click on (bottom side)</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="t">t Triangle for handle</option>
+            <option value="G">G Edge with pear shaped mounting holes</option>
+            <option value="y">y Handle for e.g. a drawer</option>
+            <option value="Y">Y Handle with holes for parallel finger joint</option>
       </param>
+        <param name="back_height" type="float" precision="2" max="9999" gui-text="back_height" gui-description="additional height of the back wall - e top egde only">0.0</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius for strengthening side walls with back_height">0.0</param>
         <param name="gripheight" type="float" precision="2" max="9999" gui-text="gripheight" gui-description="height of the grip hole in mm">30</param>
         <param name="gripwidth" type="float" precision="2" max="9999" gui-text="gripwidth" gui-description="width of th grip hole in mm (zero for no hole)">70</param>
+        <param name="handle" type="bool" gui-text="handle" gui-description="add handle to the bottom (changes bottom edge in the front)">false</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">0.5</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">0.5</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Hinges and HingePins">
         <param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
@@ -68,9 +83,9 @@
             <option value="outset">outset</option>
             <option value="flush">flush</option>
     </param>
-        <param name="Hinge_axle" type="int" max="9999" gui-text="axle" gui-description="diameter of the pin hole">2</param>
-        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids">0</param>
-        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place">1</param>
+        <param name="Hinge_axle" type="float" precision="2" max="9999" gui-text="axle" gui-description="diameter of the pin hole (multiples of thickness)">2.0</param>
+        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
+        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
     </page>
     <page name="tab_5" gui-text="Cabinet Hinges">
         <param name="CabinetHinge_bore" type="float" precision="2" max="9999" gui-text="bore" gui-description="diameter of the pin hole in mm">3.2</param>
@@ -80,9 +95,9 @@
             <option value="inside">inside</option>
             <option value="outside">outside</option>
     </param>
-        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (in multiples of thickness)">1.5</param>
-        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (in multiples of thickness)">0.05</param>
-        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge">2.0</param>
+        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (multiples of thickness)">1.5</param>
+        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (multiples of thickness)">0.05</param>
+        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge (multiples of thickness)">2.0</param>
     </page>
     <page name="tab_6" gui-text="Slide-on Lids">
         <param name="Lid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
@@ -97,26 +112,54 @@
         <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_7" gui-text="Click-on Lids">
         <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
-        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom">0.1</param>
-        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks">3.0</param>
+        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
+        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_8" gui-text="RoundedTriangleEdge">
-        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">150.0</param>
+        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">50.0</param>
         <param name="RoundedTriangleEdge_r_hole" type="float" precision="2" max="9999" gui-text="r_hole" gui-description="radius of hole">2.0</param>
         <param name="RoundedTriangleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of top corner">30.0</param>
-        <param name="RoundedTriangleEdge_outset" type="int" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge">1</param>
+        <param name="RoundedTriangleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_9" gui-text="Example">
+    <page name="tab_9" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.125</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">2</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_10" gui-text="HandleEdge">
+        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+        <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
+        <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
+        <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
+        <param name="HandleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of corners in mm">10.0</param>
+        <param name="HandleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the handle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_11" gui-text="Example">
         <image>./TypeTray-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.UBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.UBox.inx
index 1cbd124..e4b81db 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.UBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.UBox.inx
@@ -5,19 +5,23 @@
 <param name="generator" type="string" gui-hidden="true">ubox</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="UBox">
-      <param name="top_edge" type="enum" gui-text="top_edge" gui-description="edge type for top edge">
-        <item value="e">e Straight Edge</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="c">c Abstract Edge Class</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="t">t Triangle for handle</item>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="c">c Click on (bottom side)</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="t">t Triangle for handle</option>
+            <option value="G">G Edge with pear shaped mounting holes</option>
+            <option value="y">y Handle for e.g. a drawer</option>
+            <option value="Y">Y Handle with holes for parallel finger joint</option>
       </param>
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm">100.0</param>
@@ -30,31 +34,39 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Hinges and HingePins">
         <param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
@@ -64,9 +76,9 @@
             <option value="outset">outset</option>
             <option value="flush">flush</option>
     </param>
-        <param name="Hinge_axle" type="int" max="9999" gui-text="axle" gui-description="diameter of the pin hole">2</param>
-        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids">0</param>
-        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place">1</param>
+        <param name="Hinge_axle" type="float" precision="2" max="9999" gui-text="axle" gui-description="diameter of the pin hole (multiples of thickness)">2.0</param>
+        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
+        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
     </page>
     <page name="tab_5" gui-text="Cabinet Hinges">
         <param name="CabinetHinge_bore" type="float" precision="2" max="9999" gui-text="bore" gui-description="diameter of the pin hole in mm">3.2</param>
@@ -76,9 +88,9 @@
             <option value="inside">inside</option>
             <option value="outside">outside</option>
     </param>
-        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (in multiples of thickness)">1.5</param>
-        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (in multiples of thickness)">0.05</param>
-        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge">2.0</param>
+        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (multiples of thickness)">1.5</param>
+        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (multiples of thickness)">0.05</param>
+        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge (multiples of thickness)">2.0</param>
     </page>
     <page name="tab_6" gui-text="Slide-on Lids">
         <param name="Lid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
@@ -93,32 +105,60 @@
         <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_7" gui-text="Click-on Lids">
         <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
-        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom">0.1</param>
-        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks">3.0</param>
+        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
+        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_8" gui-text="RoundedTriangleEdge">
-        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">150.0</param>
+        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">50.0</param>
         <param name="RoundedTriangleEdge_r_hole" type="float" precision="2" max="9999" gui-text="r_hole" gui-description="radius of hole">2.0</param>
         <param name="RoundedTriangleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of top corner">30.0</param>
-        <param name="RoundedTriangleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge">0.0</param>
+        <param name="RoundedTriangleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge (multiples of thickness)">0.0</param>
     </page>
-    <page name="tab_9" gui-text="Flex">
+    <page name="tab_9" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.125</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">2</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_10" gui-text="HandleEdge">
+        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+        <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
+        <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
+        <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
+        <param name="HandleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of corners in mm">10.0</param>
+        <param name="HandleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the handle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_11" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
-    <page name="tab_10" gui-text="Example">
+    <page name="tab_12" gui-text="Example">
         <image>./UBox-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.UnevenHeightBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.UnevenHeightBox.inx
index 3b39179..adfccb9 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.UnevenHeightBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.UnevenHeightBox.inx
@@ -5,15 +5,15 @@
 <param name="generator" type="string" gui-hidden="true">unevenheightbox</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="UnevenHeightBox">
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="height0" type="float" precision="2" max="9999" gui-text="height0" gui-description="height of the front left corner in mm">50</param>
         <param name="height1" type="float" precision="2" max="9999" gui-text="height1" gui-description="height of the front right corner in mm">50</param>
         <param name="height2" type="float" precision="2" max="9999" gui-text="height2" gui-description="height of the right back corner in mm">100</param>
@@ -23,25 +23,33 @@
         <param name="edge_types" type="string" gui-text="edge_types" gui-description="which edges are flat (e) or grooved (z,Z), counter-clockwise from the front">eeee</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Grooved Edge">
         <param name="Grooved_arc_angle" type="int" max="9999" gui-text="arc_angle" gui-description="the angle of arc cuts">120</param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.UniversalBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.UniversalBox.inx
index d60b2a4..1aa4fcd 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.UniversalBox.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.UniversalBox.inx
@@ -5,30 +5,34 @@
 <param name="generator" type="string" gui-hidden="true">universalbox</param>
 <param name="tab" type="notebook">
     <page name="tab_0" gui-text="UniversalBox">
-      <param name="top_edge" type="enum" gui-text="top_edge" gui-description="edge type for top edge">
-        <item value="e">e Straight Edge</item>
-        <item value="f">f Finger Joint</item>
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="c">c Abstract Edge Class</item>
-        <item value="E">E Straight Edge (outset by thickness)</item>
-        <item value="S">S Stackable (top)</item>
-        <item value="i">i Straight edge with hinge eye</item>
-        <item value="k">k Straight edge with hinge eye (both ends)</item>
-        <item value="v">v Edge with cabinet hinges for 90° lid</item>
-        <item value="L">L Edge for slide on lid (box back)</item>
-        <item value="t">t Triangle for handle</item>
+        <param name="top_edge" type="optiongroup" appearance="combo" gui-text="top_edge" gui-description="edge type for top edge">
+            <option value="e">e Straight Edge</option>
+            <option value="f">f Finger Joint</option>
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="c">c Click on (bottom side)</option>
+            <option value="E">E Straight Edge (outset by thickness)</option>
+            <option value="S">S Stackable (top)</option>
+            <option value="Š">Š Stackable edge with finger holes (top)</option>
+            <option value="i">i Straight edge with hinge eye</option>
+            <option value="k">k Straight edge with hinge eye (both ends)</option>
+            <option value="v">v Edge with cabinet hinges for 90° lid</option>
+            <option value="L">L Edge for slide on lid (box back)</option>
+            <option value="t">t Triangle for handle</option>
+            <option value="G">G Edge with pear shaped mounting holes</option>
+            <option value="y">y Handle for e.g. a drawer</option>
+            <option value="Y">Y Handle with holes for parallel finger joint</option>
       </param>
-      <param name="bottom_edge" type="enum" gui-text="bottom_edge" gui-description="edge type for bottom edge">
-        <item value="F">F Finger Joint (opposing side)</item>
-        <item value="h">h Edge (parallel Finger Joint Holes)</item>
-        <item value="s">s Stackable (bottom, finger joint holes)</item>
-        <item value="e">e Straight Edge</item>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
       </param>
         <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm (unless outside selected)">100.0</param>
         <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">100.0</param>
         <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
-        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements that include the walls">true</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
         <param name="vertical_edges" type="optiongroup" appearance="combo" gui-text="vertical_edges" gui-description="connections used for the vertical edges">
             <option value="finger joints">finger joints</option>
             <option value="finger holes">finger holes</option>
@@ -40,31 +44,39 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Stackable Edges">
         <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
-        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet">2.0</param>
-        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge">1.0</param>
-        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet">4.0</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
     </page>
     <page name="tab_4" gui-text="Hinges and HingePins">
         <param name="Hinge_grip_percentage" type="int" max="9999" gui-text="grip_percentage" gui-description="grip_percentage">0</param>
@@ -74,9 +86,9 @@
             <option value="outset">outset</option>
             <option value="flush">flush</option>
     </param>
-        <param name="Hinge_axle" type="int" max="9999" gui-text="axle" gui-description="diameter of the pin hole">2</param>
-        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids">0</param>
-        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place">1</param>
+        <param name="Hinge_axle" type="float" precision="2" max="9999" gui-text="axle" gui-description="diameter of the pin hole (multiples of thickness)">2.0</param>
+        <param name="Hinge_grip_length" type="int" max="9999" gui-text="grip_length" gui-description="fixed length of the grips on he lids (multiples of thickness)">0</param>
+        <param name="Hinge_hingestrength" type="int" max="9999" gui-text="hingestrength" gui-description="thickness of the arc holding the pin in place (multiples of thickness)">1</param>
     </page>
     <page name="tab_5" gui-text="Cabinet Hinges">
         <param name="CabinetHinge_bore" type="float" precision="2" max="9999" gui-text="bore" gui-description="diameter of the pin hole in mm">3.2</param>
@@ -86,9 +98,9 @@
             <option value="inside">inside</option>
             <option value="outside">outside</option>
     </param>
-        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (in multiples of thickness)">1.5</param>
-        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (in multiples of thickness)">0.05</param>
-        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge">2.0</param>
+        <param name="CabinetHinge_eye" type="float" precision="2" max="9999" gui-text="eye" gui-description="radius of the eye (multiples of thickness)">1.5</param>
+        <param name="CabinetHinge_play" type="float" precision="2" max="9999" gui-text="play" gui-description="space between eyes (multiples of thickness)">0.05</param>
+        <param name="CabinetHinge_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="minimum space around the hinge (multiples of thickness)">2.0</param>
     </page>
     <page name="tab_6" gui-text="Slide-on Lids">
         <param name="Lid_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
@@ -103,32 +115,60 @@
         <param name="Lid_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">3.0</param>
-        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.05</param>
-        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="Lid_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="Lid_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="Lid_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="Lid_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">3.0</param>
+        <param name="Lid_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.05</param>
+        <param name="Lid_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="Lid_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_7" gui-text="Click-on Lids">
         <param name="Click_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the hooks bending outward">5.0</param>
-        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom">0.1</param>
-        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks">3.0</param>
+        <param name="Click_bottom_radius" type="float" precision="2" max="9999" gui-text="bottom_radius" gui-description="radius at the bottom (multiples of thickness)">0.1</param>
+        <param name="Click_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="length of the hooks (multiples of thickness)">3.0</param>
     </page>
     <page name="tab_8" gui-text="RoundedTriangleEdge">
-        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">150.0</param>
+        <param name="RoundedTriangleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall">50.0</param>
         <param name="RoundedTriangleEdge_r_hole" type="float" precision="2" max="9999" gui-text="r_hole" gui-description="radius of hole">2.0</param>
         <param name="RoundedTriangleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of top corner">30.0</param>
-        <param name="RoundedTriangleEdge_outset" type="int" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge">1</param>
+        <param name="RoundedTriangleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the triangle along the length of the edge (multiples of thickness)">1.0</param>
     </page>
-    <page name="tab_9" gui-text="Flex">
+    <page name="tab_9" gui-text="Mounting Edge">
+        <param name="Mounting_d_head" type="float" precision="2" max="9999" gui-text="d_head" gui-description="head diameter of mounting screw (in mm)">6.5</param>
+        <param name="Mounting_d_shaft" type="float" precision="2" max="9999" gui-text="d_shaft" gui-description="shaft diameter of mounting screw (in mm)">3.0</param>
+        <param name="Mounting_margin" type="float" precision="2" max="9999" gui-text="margin" gui-description="minimum space left and right without holes (fraction of the edge length)">0.125</param>
+        <param name="Mounting_num" type="int" max="9999" gui-text="num" gui-description="number of mounting holes (integer)">2</param>
+        <param name="Mounting_side" type="optiongroup" appearance="combo" gui-text="side" gui-description="side of box (not all valid configurations make sense...)">
+            <option value="back">back</option>
+            <option value="left">left</option>
+            <option value="right">right</option>
+            <option value="front">front</option>
+    </param>
+        <param name="Mounting_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="edge style">
+            <option value="straight edge, within">straight edge, within</option>
+            <option value="straight edge, extended">straight edge, extended</option>
+            <option value="mounting tab">mounting tab</option>
+    </param>
+    </page>
+    <page name="tab_10" gui-text="HandleEdge">
+        <param name="HandleEdge_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height above the wall in mm">20.0</param>
+        <param name="HandleEdge_hole_height" type="float" precision="2" max="9999" gui-text="hole_height" gui-description="height of hole(s) in percentage of maximum hole height (handle height - 2 * material thickness)">75.0</param>
+        <param name="HandleEdge_hole_width" type="string" gui-text="hole_width" gui-description="width of hole(s) in percentage of maximum hole width (width of edge - (n+1) * material thickness)">40:40</param>
+        <param name="HandleEdge_on_sides" type="bool" gui-text="on_sides" gui-description="added to side panels if checked, to front and back otherwise (only used with top_edge parameter)">true</param>
+        <param name="HandleEdge_radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of corners in mm">10.0</param>
+        <param name="HandleEdge_outset" type="float" precision="2" max="9999" gui-text="outset" gui-description="extend the handle along the length of the edge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_11" gui-text="Flex">
         <param name="Flex_stretch" type="float" precision="2" max="9999" gui-text="stretch" gui-description="Hint of how much the flex part should be shortend">1.05</param>
-        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts">1.0</param>
-        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts">0.5</param>
-        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width">5.0</param>
+        <param name="Flex_connection" type="float" precision="2" max="9999" gui-text="connection" gui-description="width of the gaps in the cuts (multiples of thickness)">1.0</param>
+        <param name="Flex_distance" type="float" precision="2" max="9999" gui-text="distance" gui-description="width of the pattern perpendicular to the cuts (multiples of thickness)">0.5</param>
+        <param name="Flex_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the pattern in direction of the cuts (multiples of thickness)">5.0</param>
     </page>
-    <page name="tab_10" gui-text="Example">
+    <page name="tab_12" gui-text="Example">
         <image>./UniversalBox-thumb.jpg</image>
     </page>
 </param>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WaivyKnob.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WaivyKnob.inx
index adcf0f0..ac0ea77 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.WaivyKnob.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WaivyKnob.inx
@@ -13,12 +13,17 @@
         <param name="hexhead" type="float" precision="2" max="9999" gui-text="hexhead" gui-description="Width of the hex bolt head (mm)">10.0</param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Example">
         <image>./WaivyKnob-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallCaliper.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallCaliper.inx
new file mode 100644
index 0000000..8d931e1
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallCaliper.inx
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallCaliper</name>
+<id>info.festi.boxes.py.WallCaliper</id>
+<param name="generator" type="string" gui-hidden="true">wallcaliper</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallCaliper">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">100</param>
+        <param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the long end">18.0</param>
+        <param name="heigth" type="float" precision="2" max="9999" gui-text="heigth" gui-description="heigth of the body">6.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallCaliper-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallCaliper</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallChiselHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallChiselHolder.inx
new file mode 100644
index 0000000..8027e63
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallChiselHolder.inx
@@ -0,0 +1,109 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallChiselHolder</name>
+<id>info.festi.boxes.py.WallChiselHolder</id>
+<param name="generator" type="string" gui-hidden="true">wallchiselholder</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallChiselHolder">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">120</param>
+        <param name="tooldiameter" type="float" precision="2" max="9999" gui-text="tooldiameter" gui-description="diameter of the tool including space to grab">30.0</param>
+        <param name="holediameter" type="float" precision="2" max="9999" gui-text="holediameter" gui-description="diameter of the hole for the tool (handle should not fit through)">30.0</param>
+        <param name="slot_width" type="float" precision="2" max="9999" gui-text="slot_width" gui-description="width of slots">5.0</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius at the slots">5.0</param>
+        <param name="number" type="int" max="9999" gui-text="number" gui-description="number of tools/slots">6</param>
+        <param name="hooks" type="optiongroup" appearance="combo" gui-text="hooks" gui-description="amount of hooks / braces">
+            <option value="all">all</option>
+            <option value="odds">odds</option>
+            <option value="everythird">everythird</option>
+    </param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallChiselHolder-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallChiselHolder</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallConsole.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallConsole.inx
new file mode 100644
index 0000000..35d077a
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallConsole.inx
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallConsole</name>
+<id>info.festi.boxes.py.WallConsole</id>
+<param name="generator" type="string" gui-hidden="true">wallconsole</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallConsole">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">100</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="top_depth" type="float" precision="2" max="9999" gui-text="top_depth" gui-description="depth at the top">50</param>
+        <param name="bottom_depth" type="float" precision="2" max="9999" gui-text="bottom_depth" gui-description="depth at the bottom">35</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallConsole-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallConsole</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallDrillBox.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallDrillBox.inx
new file mode 100644
index 0000000..1d6d08f
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallDrillBox.inx
@@ -0,0 +1,108 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallDrillBox</name>
+<id>info.festi.boxes.py.WallDrillBox</id>
+<param name="generator" type="string" gui-hidden="true">walldrillbox</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallDrillBox">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">25*6</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">10:20:30</param>
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">25:40:60</param>
+        <param name="extra_height" type="float" precision="2" max="9999" gui-text="extra_height" gui-description="height difference left to right">15.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Stackable Edges">
+        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">1.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">3.0</param>
+    </page>
+    <page name="tab_8" gui-text="Example">
+        <image>./WallDrillBox-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallDrillBox</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallEdges.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallEdges.inx
new file mode 100644
index 0000000..4f11b77
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallEdges.inx
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallEdges</name>
+<id>info.festi.boxes.py.WallEdges</id>
+<param name="generator" type="string" gui-hidden="true">walledges</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallEdges">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">120</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallEdges-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallEdges</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallPinRow.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallPinRow.inx
new file mode 100644
index 0000000..057ffe2
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallPinRow.inx
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallPinRow</name>
+<id>info.festi.boxes.py.WallPinRow</id>
+<param name="generator" type="string" gui-hidden="true">wallpinrow</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallPinRow">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="pins" type="int" max="9999" gui-text="pins" gui-description="number of pins">8</param>
+        <param name="pinlength" type="float" precision="2" max="9999" gui-text="pinlength" gui-description="length of pins (in mm)">35</param>
+        <param name="pinwidth" type="float" precision="2" max="9999" gui-text="pinwidth" gui-description="width of pins (in mm)">10</param>
+        <param name="pinspacing" type="float" precision="2" max="9999" gui-text="pinspacing" gui-description="space from middle to middle of pins (in mm)">35</param>
+        <param name="pinspacing_increment" type="float" precision="2" max="9999" gui-text="pinspacing_increment" gui-description="increase spacing from left to right (in mm)">0.0</param>
+        <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the pins pointing up (in degrees)">20.0</param>
+        <param name="hooks" type="int" max="9999" gui-text="hooks" gui-description="number of hooks into the wall">3</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="height of the front plate (in mm) - needs to be at least 7 time the thickness">50.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallPinRow-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallPinRow</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallPlaneHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallPlaneHolder.inx
new file mode 100644
index 0000000..b1b563b
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallPlaneHolder.inx
@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallPlaneHolder</name>
+<id>info.festi.boxes.py.WallPlaneHolder</id>
+<param name="generator" type="string" gui-hidden="true">wallplaneholder</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallPlaneHolder">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the plane">80</param>
+        <param name="length" type="float" precision="2" max="9999" gui-text="length" gui-description="legth of the plane">250</param>
+        <param name="hold_length" type="float" precision="2" max="9999" gui-text="hold_length" gui-description="legth of the part hiolding the plane over the front">30</param>
+        <param name="height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the front of plane">80</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallPlaneHolder-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallPlaneHolder</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallPliersHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallPliersHolder.inx
new file mode 100644
index 0000000..8076930
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallPliersHolder.inx
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallPliersHolder</name>
+<id>info.festi.boxes.py.WallPliersHolder</id>
+<param name="generator" type="string" gui-hidden="true">wallpliersholder</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallPliersHolder">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">100*3</param>
+        <param name="y" type="float" precision="2" max="9999" gui-text="y" gui-description="inner depth in mm (unless outside selected)">50</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">50</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="bracing angle - less for more bracing">45</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallPliersHolder-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallPliersHolder</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallSlottedHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallSlottedHolder.inx
new file mode 100644
index 0000000..1c3f452
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallSlottedHolder.inx
@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallSlottedHolder</name>
+<id>info.festi.boxes.py.WallSlottedHolder</id>
+<param name="generator" type="string" gui-hidden="true">wallslottedholder</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallSlottedHolder">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm">120</param>
+        <param name="slot_depth" type="float" precision="2" max="9999" gui-text="slot_depth" gui-description="depth of slots from the front">50.0</param>
+        <param name="additional_depth" type="float" precision="2" max="9999" gui-text="additional_depth" gui-description="depth behind the lots">50.0</param>
+        <param name="slot_width" type="float" precision="2" max="9999" gui-text="slot_width" gui-description="width of slots">5.0</param>
+        <param name="tool_width" type="float" precision="2" max="9999" gui-text="tool_width" gui-description="overall width for the tools">35.0</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius of the slots at the front">5.0</param>
+        <param name="number" type="int" max="9999" gui-text="number" gui-description="number of tools/slots">6</param>
+        <param name="hooks" type="optiongroup" appearance="combo" gui-text="hooks" gui-description="amount of hooks / braces">
+            <option value="all">all</option>
+            <option value="odds">odds</option>
+            <option value="everythird">everythird</option>
+    </param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallSlottedHolder-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallSlottedHolder</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallStairs.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallStairs.inx
new file mode 100644
index 0000000..54e9ce9
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallStairs.inx
@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallStairs</name>
+<id>info.festi.boxes.py.WallStairs</id>
+<param name="generator" type="string" gui-hidden="true">wallstairs</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallStairs">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">250/3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">40*3</param>
+        <param name="sh" type="string" gui-text="sh" gui-description="sections bottom to top in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">30:100:180</param>
+        <param name="braceheight" type="float" precision="2" max="9999" gui-text="braceheight" gui-description="height of the brace at the bottom back (in mm). Zero for none">30</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallStairs-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallStairs</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallTypeTray.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallTypeTray.inx
new file mode 100644
index 0000000..ee26971
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallTypeTray.inx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallTypeTray</name>
+<id>info.festi.boxes.py.WallTypeTray</id>
+<param name="generator" type="string" gui-hidden="true">walltypetray</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallTypeTray">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="sx" type="string" gui-text="sx" gui-description="sections left to right in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="sy" type="string" gui-text="sy" gui-description="sections back to front in mm [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#section-parameters)">50*3</param>
+        <param name="h" type="float" precision="2" max="9999" gui-text="h" gui-description="inner height in mm (unless outside selected)">100.0</param>
+        <param name="hi" type="float" precision="2" max="9999" gui-text="hi" gui-description="inner height of inner walls in mm (unless outside selected)(leave to zero for same as outer walls)">0.0</param>
+        <param name="outside" type="bool" gui-text="outside" gui-description="treat sizes as outside measurements [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#outside)">true</param>
+        <param name="bottom_edge" type="optiongroup" appearance="combo" gui-text="bottom_edge" gui-description="edge type for bottom edge">
+            <option value="F">F Finger Joint (opposing side)</option>
+            <option value="h">h Edge (parallel Finger Joint Holes)</option>
+            <option value="s">s Stackable (bottom, finger joint holes)</option>
+            <option value="e">e Straight Edge</option>
+      </param>
+        <param name="back_height" type="float" precision="2" max="9999" gui-text="back_height" gui-description="additional height of the back wall">0.0</param>
+        <param name="radius" type="float" precision="2" max="9999" gui-text="radius" gui-description="radius for strengthening walls with the hooks">0.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Stackable Edges">
+        <param name="Stackable_angle" type="int" max="9999" gui-text="angle" gui-description="inside angle of the feet">60</param>
+        <param name="Stackable_height" type="float" precision="2" max="9999" gui-text="height" gui-description="height of the feet (multiples of thickness)">2.0</param>
+        <param name="Stackable_holedistance" type="float" precision="2" max="9999" gui-text="holedistance" gui-description="distance from finger holes to bottom edge (multiples of thickness)">1.0</param>
+        <param name="Stackable_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of the feet (multiples of thickness)">4.0</param>
+    </page>
+    <page name="tab_8" gui-text="Example">
+        <image>./WallTypeTray-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallTypeTray</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WallWrenchHolder.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WallWrenchHolder.inx
new file mode 100644
index 0000000..c045e3c
--- /dev/null
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WallWrenchHolder.inx
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+<name>WallWrenchHolder</name>
+<id>info.festi.boxes.py.WallWrenchHolder</id>
+<param name="generator" type="string" gui-hidden="true">wallwrenchholder</param>
+<param name="tab" type="notebook">
+    <page name="tab_0" gui-text="WallWrenchHolder">
+        <param name="walltype" type="optiongroup" appearance="combo" gui-text="walltype" gui-description="Type of wall system to attach to">
+            <option value="plain">plain</option>
+            <option value="plain reenforced">plain reenforced</option>
+            <option value="slatwall">slatwall</option>
+            <option value="dinrail">dinrail</option>
+            <option value="french cleat">french cleat</option>
+    </param>
+        <param name="x" type="float" precision="2" max="9999" gui-text="x" gui-description="inner width in mm">100</param>
+        <param name="depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="depth of the sides (in mm)">30.0</param>
+        <param name="number" type="int" max="9999" gui-text="number" gui-description="number of wrenches (in mm)">11</param>
+        <param name="min_width" type="float" precision="2" max="9999" gui-text="min_width" gui-description="width of smallest wrench (in mm)">8.0</param>
+        <param name="max_width" type="float" precision="2" max="9999" gui-text="max_width" gui-description="width of largest wrench (in mm)">25.0</param>
+        <param name="min_strength" type="float" precision="2" max="9999" gui-text="min_strength" gui-description="strength of smallest wrench (in mm)">3.0</param>
+        <param name="max_strength" type="float" precision="2" max="9999" gui-text="max_strength" gui-description="strength of largest wrench (in mm)">5.0</param>
+        <param name="extra_distance" type="float" precision="2" max="9999" gui-text="extra_distance" gui-description="additional distance between wrenches (in mm)">0.0</param>
+    </page>
+    <page name="tab_1" gui-text="Default">
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
+        <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
+    </page>
+    <page name="tab_2" gui-text="Finger Joints">
+        <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
+        <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
+            <option value="rectangular">rectangular</option>
+            <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
+    </param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_3" gui-text="plain WallEdges">
+        <param name="Wall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_4" gui-text="SlatWallEdges">
+        <param name="SlatWall_bottom_hook" type="optiongroup" appearance="combo" gui-text="bottom_hook" gui-description='"spring", "stud" or "none"'>
+            <option value="hook">hook</option>
+            <option value="spring">spring</option>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="SlatWall_hook_depth" type="float" precision="2" max="9999" gui-text="hook_depth" gui-description="horizontal width of the hook">4.0</param>
+        <param name="SlatWall_hook_distance" type="float" precision="2" max="9999" gui-text="hook_distance" gui-description="horizontal space to the hook">5.5</param>
+        <param name="SlatWall_hook_height" type="float" precision="2" max="9999" gui-text="hook_height" gui-description="height of the horizontal bar of the hook">6.0</param>
+        <param name="SlatWall_hook_overall_height" type="float" precision="2" max="9999" gui-text="hook_overall_height" gui-description="height of the hook top to bottom">12.0</param>
+        <param name="SlatWall_pitch" type="float" precision="2" max="9999" gui-text="pitch" gui-description="vertical spacing of slots middle to middle (in mm)">101.6</param>
+        <param name="SlatWall_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="SlatWall_hook_extra_height" type="float" precision="2" max="9999" gui-text="hook_extra_height" gui-description="space surrounding connectors (multiples of thickness)">2.0</param>
+    </page>
+    <page name="tab_5" gui-text="DinRailEdges">
+        <param name="DinRail_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud" or "none"'>
+            <option value="stud">stud</option>
+            <option value="none">none</option>
+    </param>
+        <param name="DinRail_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook">8.0</param>
+        <param name="DinRail_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_6" gui-text="FrenchCleatEdges">
+        <param name="FrenchCleat_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle of the cut (0 for horizontal)">45.0</param>
+        <param name="FrenchCleat_bottom" type="optiongroup" appearance="combo" gui-text="bottom" gui-description='"stud", "hook" or "none"'>
+            <option value="stud">stud</option>
+            <option value="hook">hook</option>
+            <option value="none">none</option>
+    </param>
+        <param name="FrenchCleat_depth" type="float" precision="2" max="9999" gui-text="depth" gui-description="horizontal width of the hook in mm">18.0</param>
+        <param name="FrenchCleat_spacing" type="float" precision="2" max="9999" gui-text="spacing" gui-description="distance of the cleats in mm (for bottom hook)">200.0</param>
+        <param name="FrenchCleat_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+    </page>
+    <page name="tab_7" gui-text="Example">
+        <image>./WallWrenchHolder-thumb.jpg</image>
+    </page>
+</param>
+<label appearance="url">https://www.festi.info/boxes.py/WallWrenchHolder</label>
+<effect>
+    <object-type>all</object-type>
+    <effects-menu>
+        <submenu name="FabLab Chemnitz Boxes.py">
+            <submenu name="WallMounted"/>
+        </submenu>
+    </effects-menu>
+</effect>
+<script>
+    <command location="inx" interpreter="python">boxes_proxy.py</command>
+</script>
+</inkscape-extension>
\ No newline at end of file
diff --git a/extensions/fablabchemnitz/boxes.py/boxes.py.WineRack.inx b/extensions/fablabchemnitz/boxes.py/boxes.py.WineRack.inx
index b9f2111..24d46f4 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes.py.WineRack.inx
+++ b/extensions/fablabchemnitz/boxes.py/boxes.py.WineRack.inx
@@ -16,25 +16,33 @@
     </param>
     </page>
     <page name="tab_1" gui-text="Default">
-        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material">3.0</param>
-        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place in mm (not supported everywhere)">0.0</param>
-        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures">false</param>
+        <param name="thickness" type="float" precision="2" max="9999" gui-text="thickness" gui-description="thickness of the material (in mm) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#thickness)">3.0</param>
+        <param name="tabs" type="float" precision="2" max="9999" gui-text="tabs" gui-description="width of tabs holding the parts in place (in mm)(not supported everywhere) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#tabs)">0.0</param>
+        <param name="debug" type="bool" gui-text="debug" gui-description="print surrounding boxes for some structures [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#debug)">false</param>
         <param name="labels" type="bool" gui-text="labels" gui-description="label the parts (where available)">true</param>
-        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (zero to disable)">100</param>
-        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description='burn correction in mm (bigger values for tighter fit). Use BurnTest in "Parts and Samples" to find the right value.'>0.1</param>
+        <param name="reference" type="float" precision="2" max="9999" gui-text="reference" gui-description="print reference rectangle with given length (in mm)(zero to disable) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#reference)">100</param>
+        <param name="inner_corners" type="optiongroup" appearance="combo" gui-text="inner_corners" gui-description="style for inner corners [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#inner-corners)">
+            <option value="loop">loop</option>
+            <option value="corner">corner</option>
+            <option value="backarc">backarc</option>
+    </param>
+        <param name="burn" type="float" precision="2" max="9999" gui-text="burn" gui-description="burn correction (in mm)(bigger values for tighter fit) [🛈](https://florianfesti.github.io/boxes/html/usermanual.html#burn)">0.1</param>
     </page>
     <page name="tab_2" gui-text="Finger Joints">
         <param name="FingerJoint_angle" type="float" precision="2" max="9999" gui-text="angle" gui-description="angle">90.0</param>
         <param name="FingerJoint_style" type="optiongroup" appearance="combo" gui-text="style" gui-description="style of the fingers">
             <option value="rectangular">rectangular</option>
             <option value="springs">springs</option>
+            <option value="barbs">barbs</option>
+            <option value="snap">snap</option>
     </param>
-        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="maximum space at the start and end in multiple of normal spaces">2.0</param>
-        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge">1.0</param>
-        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers">2.0</param>
-        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out">0.0</param>
-        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers">2.0</param>
-        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes">1.0</param>
+        <param name="FingerJoint_surroundingspaces" type="float" precision="2" max="9999" gui-text="surroundingspaces" gui-description="space at the start and end in multiple of normal spaces">2.0</param>
+        <param name="FingerJoint_edge_width" type="float" precision="2" max="9999" gui-text="edge_width" gui-description="space below holes of FingerHoleEdge (multiples of thickness)">1.0</param>
+        <param name="FingerJoint_extra_length" type="float" precision="2" max="9999" gui-text="extra_length" gui-description="extra material to grind away burn marks (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_finger" type="float" precision="2" max="9999" gui-text="finger" gui-description="width of the fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_play" type="float" precision="2" max="9999" gui-text="play" gui-description="extra space to allow finger move in and out (multiples of thickness)">0.0</param>
+        <param name="FingerJoint_space" type="float" precision="2" max="9999" gui-text="space" gui-description="space between fingers (multiples of thickness)">2.0</param>
+        <param name="FingerJoint_width" type="float" precision="2" max="9999" gui-text="width" gui-description="width of finger holes (multiples of thickness)">1.0</param>
     </page>
     <page name="tab_3" gui-text="Example">
         <image>./WineRack-thumb.jpg</image>
diff --git a/extensions/fablabchemnitz/boxes.py/boxes/boxes/__init__.py b/extensions/fablabchemnitz/boxes.py/boxes/boxes/__init__.py
index 9ce6942..5316877 100755
--- a/extensions/fablabchemnitz/boxes.py/boxes/boxes/__init__.py
+++ b/extensions/fablabchemnitz/boxes.py/boxes/boxes/__init__.py
@@ -219,7 +219,7 @@ class BoolArg:
             default = self(default)
         return """<input name="%s" type="hidden" value="0">
 <input name="%s" id="%s" aria-labeledby="%s %s" type="checkbox" value="1"%s>""" % \
-            (name, name, name, name+"_id", name+"_description",' checked="checked"' if default else "") 
+            (name, name, name, name+"_id", name+"_description",' checked="checked"' if default else "")
 
 boolarg = BoolArg()
 
@@ -1182,7 +1182,7 @@ class Boxes:
             self.ctx.restore()
             if self.labels and label:
                 self.text(label, x/2, y/2, align="middle center", color=Color.ANNOTATIONS, fontsize=4)
-            self.ctx.stroke() 
+            self.ctx.stroke()
 
         for term in terms:
             if not term in moves:
@@ -1252,11 +1252,11 @@ class Boxes:
         if n == 0:
             self.hole(x, y, r=r, tabs=tabs)
             return
- 
+
         if r < self.burn:
             r = self.burn + 1E-9
         r_ = r - self.burn
-        
+
         if corner_radius < self.burn:
             corner_radius = self.burn
         cr_ = corner_radius - self.burn
@@ -1269,7 +1269,7 @@ class Boxes:
         b = math.sin(math.pi / n) / math.sin(2 * math.pi / n) * s
         # the flat portion of the side:
         flat_side_length = side_length - 2 * b
-        
+
         self.moveTo(x, y, a)
         self.moveTo(r_, 0, 90+180/n)
         self.moveTo(b, 0, 0)
@@ -1404,17 +1404,17 @@ class Boxes:
         :param angle: rotation angle of the hole
 
         """
-        
+
         if d_shaft < (2 * self.burn):
             return  # no hole if diameter is smaller then the capabilities of the machine
-        
+
         if not d_head or d_head < (2 * self.burn): # if no head diameter is given
             self.hole(x, y ,d=d_shaft, tabs=tabs)  # only a round hole is generated
             return
-            
+
         rs = d_shaft / 2
         rh = d_head / 2
-        
+
         self.moveTo(x, y, angle)
         self.moveTo(0, rs - self.burn, 0)
         self.corner(-180, rs, tabs)
@@ -1713,7 +1713,7 @@ class Boxes:
             if self.debug:
                 self.showBorderPoly(list(outerCutPoly.exterior.coords))
                 self.showBorderPoly(list(innerCutPoly.exterior.coords))
-            
+
             # set startpoint
             y = min_y + bspace + max_radius_y
 
@@ -2415,7 +2415,7 @@ class Boxes:
         :param r: radius of the corners of the flange
         :param callback:  (Default value = None)
         :param move:  (Default value = None)
-        :param label: rendered to identify parts, it is not ment to be cut or etched (Default value = "")        
+        :param label: rendered to identify parts, it is not ment to be cut or etched (Default value = "")
         """
 
         t = self.thickness
@@ -2475,7 +2475,7 @@ class Boxes:
         :param bedBoltSettings:  (Default value = None)
         :param callback:  (Default value = None)
         :param move:  (Default value = None)
-        :param label: rendered to identify parts, it is not ment to be cut or etched (Default value = "")    
+        :param label: rendered to identify parts, it is not ment to be cut or etched (Default value = "")
         """
         edges = [self.edges.get(e, e) for e in edges]
         if len(edges) == 2:
@@ -2692,12 +2692,26 @@ class Boxes:
         return ext
 
     def polygonWall(self, borders, edge="f", turtle=False,
-                    callback=None, move=None):
+                    callback=None, move=None, label=""):
+        """
+        Polygon wall for all kind of multi-edged objects
+
+        :param borders: array of distance and angles to draw
+        :param edge:  (Default value = "f") Edges to apply. If the array of borders contains more segments that edges, the edge will wrap. Only edge types without start and end width suppported for now.
+        :param turtle: (Default value = False)
+        :param callback:  (Default value = None)
+        :param move:  (Default value = None)
+        :param label: rendered to identify parts, it is not ment to be cut or etched (Default value = "")
+
+        """
+        try:
+            edges = [self.edges.get(e, e) for e in edge]
+        except TypeError:
+            edges = [self.edges.get(edge, edge)]
 
-        e = self.edges.get(edge, edge)
         t = self.thickness # XXX edge.margin()
 
-        minx, miny, maxx, maxy = self._polygonWallExtend(borders, e)
+        minx, miny, maxx, maxy = self._polygonWallExtend(borders, edges[0])
 
         tw, th = maxx - minx, maxy - miny
 
@@ -2719,12 +2733,13 @@ class Boxes:
             else:
                 length_correction = 0.0
             l -= length_correction
-            e(l)
+            edge = edges[(i//2)%len(edges)]
+            edge(l)
             self.edge(length_correction)
             self.corner(next_angle, tabs=1)
 
         if not turtle:
-            self.move(tw, th, move)
+            self.move(tw, th, move, label=label)
 
     @restore
     def polygonWalls(self, borders, h, bottom="F", top="F", symetrical=True):
diff --git a/extensions/fablabchemnitz/boxes.py/boxes/boxes/generators/displayshelf.py b/extensions/fablabchemnitz/boxes.py/boxes/boxes/generators/displayshelf.py
index 5cc0170..411388c 100644
--- a/extensions/fablabchemnitz/boxes.py/boxes/boxes/generators/displayshelf.py
+++ b/extensions/fablabchemnitz/boxes.py/boxes/boxes/generators/displayshelf.py
@@ -41,12 +41,15 @@ class DisplayShelf(Boxes): # change class name here and below
 
         t = self.thickness
         a = math.radians(self.angle)
-                
+
         hs = (self.sl+t) * math.sin(a) + math.cos(a) * t
 
         for i in range(self.num):
             pos_x = abs(0.5*t*math.sin(a))
-            pos_y = hs - math.cos(a)*0.5*t + i * (self.h-hs) / (self.num - 0.5)
+            pos_y = hs - math.cos(a)*0.5*t + i * (self.h-abs(hs)) / (self.num - 0.5)
+            if a < 0:
+                pos_y += -math.sin(a) * self.sl
+
             self.fingerHolesAt(pos_x, pos_y, self.sl, -self.angle)
             pos_x += math.cos(-a) * (self.sl+0.5*t) + math.sin(a)*0.5*t
             pos_y += math.sin(-a) * (self.sl+0.5*t) + math.cos(a)*0.5*t