diff --git a/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.inx b/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.inx
index d8366b70..1e80c154 100644
--- a/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.inx
+++ b/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.inx
@@ -2,23 +2,52 @@
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <name>Split And Break Bezier At t</name>
     <id>fablabchemnitz.de.split_and_break_bezier_at_t</id>
-    <param name="split_select" type="optiongroup" appearance="radio" gui-text="Split by" gui-description="Choose to split by length or percentage">
-        <option value="length">length</option>
-        <option value="t">percentage (t)</option>
-    </param>
-    <param name="unit" type="optiongroup" appearance="combo" gui-text="Units">
-        <option value="mm">mm</option>
-        <option value="cm">cm</option>
-        <option value="m">m</option>
-        <option value="in">in</option>
-        <option value="pt">pt</option>
-        <option value="px">px</option>
-        <option value="pc">pc</option>
-    </param>
-    <param name="target_length" type="float" min="0.0" precision="4" gui-text="Length">0.5000</param>
-    <param name="target_t" type="float" min="0.0000" max="1.0000" precision="4" appearance="full" gui-text="t">0.5000</param>
-    <label xml:space="preserve">Splits a path at value t=0..1 (t=0.5 means 50%) or at a defined length with unit.
+    <param name="tab" type="notebook">
+        <page name="tab_settings" gui-text="Settings">
+            <param name="split_select" type="optiongroup" appearance="radio" gui-text="Split by" gui-description="Choose to split by length or percentage">
+                <option value="length">length</option>
+                <option value="t">percentage (t)</option>
+            </param>
+            <param name="unit" type="optiongroup" appearance="combo" gui-text="Units">
+                <option value="mm">mm</option>
+                <option value="cm">cm</option>
+                <option value="m">m</option>
+                <option value="in">in</option>
+                <option value="pt">pt</option>
+                <option value="px">px</option>
+                <option value="pc">pc</option>
+            </param>
+            <param name="target_length" type="float" min="0.0" precision="4" gui-text="Length">0.5000</param>
+            <param name="target_t" type="float" min="0.0000" max="1.0000" precision="4" appearance="full" gui-text="t">0.5000</param>
+        </page>
+        <page name="tab_about" gui-text="About">
+            <label appearance="header">Split And Break Bezier At t</label>
+            <label>Splits a path at value t=0..1 (t=0.5 means 50%) or at a defined length with unit.
 Applies independently for each sub path in selection. Use 'Path > Reverse' to change the cutting direction.</label>
+            <label>2021 / written by Mario Voigt (Stadtfabrikanten e.V. / FabLab Chemnitz)</label>
+            <spacer/>
+            <label appearance="header">Online Documentation</label>
+            <label appearance="url">https://y.stadtfabrikanten.org/splitandbreakbezieratt</label>
+            <spacer/>
+            <label appearance="header">Contributing</label>
+            <label appearance="url">https://gitea.fablabchemnitz.de/MarioVoigt/mightyscape-1.X</label>
+            <label appearance="url">mailto:mario.voigt@stadtfabrikanten.org</label>
+            <spacer/>
+            <label appearance="header">MightyScape Extension Collection</label>
+            <label>This piece of software is part of the MightyScape for Inkscape Extension Collection and is licensed under GNU GPL v3</label>
+            <label appearance="url">https://y.stadtfabrikanten.org/mightyscape-overview</label>
+        </page>
+        <page name="tab_donate" gui-text="Donate">
+            <label appearance="header">Coffee + Pizza</label>
+            <label>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.</label>
+            <spacer/>           
+            <label>You like our work and want to support us? You can donate to our non-profit organization by different ways:</label>
+            <label appearance="url">https://y.stadtfabrikanten.org/donate</label>
+            <spacer/>
+            <label>Thanks for using our extension and helping us!</label>
+            <image>../000_about_fablabchemnitz.svg</image>
+        </page>
+    </param>
     <effect>
         <object-type>path</object-type>
         <effects-menu>
diff --git a/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.py b/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.py
index 2d6e475c..8e05d7c1 100644
--- a/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.py
+++ b/extensions/fablabchemnitz/split_and_break_bezier_at_t/split_and_break_bezier_at_t.py
@@ -1,5 +1,19 @@
 #!/usr/bin/env python3
 
+"""
+Extension for InkScape 1.0
+
+Author: Mario Voigt / FabLab Chemnitz
+Mail: mario.voigt@stadtfabrikanten.org
+Date: 01.06.2021
+Last patch: 02.06.2021
+License: GNU GPL v3
+
+Splits a path at value t=0..1 (t=0.5 means 50%) or at a defined length with unit.
+Applies independently for each sub path in selection. Use 'Path > Reverse' to change the cutting direction.
+
+"""
+
 import copy
 import inkex
 from inkex import bezier, CubicSuperPath, PathElement, Path
@@ -38,6 +52,7 @@ class SplitAndBreakBezierAtT(inkex.EffectExtension):
         return breakelements
 
     def add_arguments(self, pars):
+        pars.add_argument('--tab')
         pars.add_argument('--split_select', default="t")
         pars.add_argument('--unit', default="mm")
         pars.add_argument('--target_length', type=float, default=0.5)