This is related to ColourChaseChanger (V2).

• ActionScript.SetProperty.Boolean
• Programmer.SetBlindMode
• Attribute.Mask.IncludeAll
• Group.RecallGroupNumeric
• Palette.ApplyPalette
• Palette.StoreCurrentPaletteReplace
• Programmer.Editor.Clear
• Handles.SetSourceHandleFromHandle
• Palette.StoreCurrentPaletteReplace
• ActionScript.SetProperty.Enum
• Handles.CopyDestination
• Handles.ClearSelection

• Programmer.BlindActive
• Palette.CurrentPaletteHandle
• Handles.SourceHandle (implicitely used)
• Handles.OperationMode

palettechasechanger_v3.xml

<?xml version="1.0" encoding="utf-8"?>
<avolites.macros xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="Avolites.Menus.xsd">
  <macro id="UpTwoColorChange" name="Up Two Change">
  <!-- This swops palette 1,71 with 1,68 and 1,72 with 1,69. -->
    <sequence>
      <step>ActionScript.SetProperty.Boolean("Programmer.BlindActive", true)</step> <!-- go blind -->
      <step>Programmer.SetBlindMode(false, 0)</step>
      <step>Attribute.Mask.IncludeAll("Palette")</step>  <!-- ??? -->
      <step>Group.RecallGroupNumeric(17)</step>  <!-- recall group #17 -->
      <step>Palette.ApplyPalette("Location=Positions,0,68", false)</step>  <!-- set to palette Pos 0,68 -->
      <step>ActionScript.SetProperty("Palette.CurrentPaletteHandle", handle:"Location=Positions,1,71")</step>
      <step>Palette.StoreCurrentPaletteReplace()</step>  <!-- store as palette 1,71 -->
      <step>Programmer.Editor.Clear(Attribute.Mask.Clear.Value, Programmer.Editor.Fixtures.Clear.Presets, 
        false, Expert.ClearMenu.FadeTime)</step> <!-- clear -->
      <step>Group.RecallGroupNumeric(17)</step> <!-- recall group #17 -->
      <step>Palette.ApplyPalette("Location=Positions,0,69", false)</step>  <!-- set to palette Pos 0,69 -->
      <step>ActionScript.SetProperty("Palette.CurrentPaletteHandle", handle:"Location=Positions,1,72")</step>
      <step>Palette.StoreCurrentPaletteReplace()</step>  <!-- store as palette 1,72 -->
      <step>Programmer.Editor.Clear(Attribute.Mask.Clear.Value, Programmer.Editor.Fixtures.Clear.Presets, 
        false, Expert.ClearMenu.FadeTime)</step> <!-- clear -->
      <step>ActionScript.SetProperty.Boolean("Programmer.BlindActive", false)</step> <!-- exit blind -->
      <step>Programmer.SetBlindMode(false, 0)</step>
    </sequence>
  </macro>
 
  <macro id="UpChaseMove" name="Up Chase Move">
    <!-- This shifts palettes 1,60~69 in pairs. -->
    <sequence>
      <step>Handles.SetSourceHandleFromHandle(Handles.GetHandle("Positions",0,69))</step>
      <step>ActionScript.SetProperty.Enum("Handles.OperationMode", "move")</step>
      <step>Handles.CopyDestination("Positions", 89)</step>
      <step>Handles.ClearSelection()</step>
 
      <step>Handles.SetSourceHandleFromHandle(Handles.GetHandle("Positions",0,68))</step>
      <step>ActionScript.SetProperty.Enum("Handles.OperationMode", "move")</step>
      <step>Handles.CopyDestination("Positions", 88)</step>
      <step>Handles.ClearSelection()</step>
 
      <!-- add more pairs to shift palettes here, see full file 
    </sequence>
  </macro>  
</avolites.macros>

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

tbd

1. make this macro available
2. Using fixture group #17, create a chaser which oscillates between position palette 1,71 and 1,72.
3. Fire UpChaseMove (possibly a few times) so select another pair of palettes.
4. Fire UpTwoColorChange to make these palettes used in the chase.