Local Overrides Sample: Show the "Change Group" button in playback controls on all tabs of the UI - bp2008/ui3 GitHub Wiki
The Timeline tab has a button in the playback controls area allowing the user to change the current group:
This script causes the button to appear on the Live View and Clips tabs too.
To learn more about ui3-local-overrides, see: Local Overrides Scripts and Styles
ui3-local-overrides.js
$("#changeGroupButton").removeClass("showOnlyOnTimeline")