From Titan v15 on ClearAll() requires two parameters, see Programmer.Editor.ClearAll.
Simply change the relevant line(s) to Programmer.Editor.ClearAll(false, false).

• Editor.Shapes.ConnectShapesList
• Editor.Shapes.SelectAllShapes
• ActionScript.SetProperty.Boolean
• Editor.Shapes.Reverse
• Programmer.Editor.ClearAll

• Editor.Shapes.ProgrammerShapes.Empty
• Editor.Shapes.EditShapesEmpty
• Editor.Shapes.EditingPlaybackShapes

• condition

ReverseAllShapes.xml

<?xml version="1.0" encoding="utf-8"?>
<avolites.macros>
 
  <macro id="Avolites.Macros.ReverseAllShapes" name="Reverse All Shapes">
    <sequence>
      <step>Editor.Shapes.ConnectShapesList()</step>
      <step condition="!Editor.Shapes.ProgrammerShapes.Empty">Editor.Shapes.SelectAllShapes()</step>
      <step condition="!Editor.Shapes.EditShapesEmpty">
        ActionScript.SetProperty.Boolean("Editor.Shapes.EditingPlaybackShapes", true)
      </step>
      <step>Editor.Shapes.Reverse()</step>
      <step>Programmer.Editor.ClearAll()</step>
    </sequence>
  </macro>
 
</avolites.macros>

This explains the functional steps within the sequence. For all the other XML details please refer to Formats and syntax

• Editor.Shapes.ConnectShapesList() lists and highlights all running shapes
• Editor.Shapes.SelectAllShapes() selects all shapes from the programmer if there are any
• Editor.Shapes.EditingPlaybackShapes flag is set if there are any shape being edited
• Editor.Shapes.Reverse() actually reverses all shapes currently being edited
• Programmer.Editor.ClearAll() finally clears programmer and editor

1. make this macro available
2. e.g. fire a playback with a shape
3. fire this macro - the running shape will be inverted and runs in the other direction