• Handles.SetSourceHandle
• Playbacks.Timecode.ToggleEnabled.Handle
• Handles.SetSourceHandleFromHandle

togglePbTimecode.xml

<?xml version="1.0" encoding="utf-8"?>
<avolites.macros>
  <macro id="UserMacro.TogglePlaybackTimecode">
    <name>Toggle Timecode Enabled</name>
    <description>Toggle whether the cue list on handle 1 of the current page is enabled for timecode.</description>
    <sequence>
      <step>Handles.SetSourceHandle("Playbacks", 0)</step>
      <step>Playbacks.Timecode.ToggleEnabled.Handle(Handles.SourceHandle)</step>
      <step>Handles.SetSourceHandleFromHandle(null)</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

• Handles.SetSourceHandle(“Playbacks”, 0) makes the playback 1 the source handle
• Playbacks.Timecode.ToggleEnabled.Handle(Handles.SourceHandle) toggles the Timecode.Enabled setting of this handle - this is the 'Connected Cuelists' toggle button in the Timecode menu
• Handles.SetSourceHandleFromHandle(null) empties the source handle property.

• Make this macro available-
• create a cuelist on playback 1
• open the [Timecode] menu
• go to [Connected Cue Lists] - the button [Cue List Playbacks[1]] is inactive
• <Exit> (the macro doesn't run as long as we are in this menu)
• fire the macro
• go to [Connected Cue Lists] - the button [Cue List Playbacks[1]] is now active