Creating new playlists with grouped tracks automatically increments the suffixes of the playlist names for each track of the active edit group. This lets you revert back to an earlier take by switching the playlist takes by group.
Using this method, you can add new tracks to the existing group and the suffixes for their playlist names are synchronized with the original tracks.
Empty playlists are created automatically to keep the playlist takes synchronized when switching back to the earliest playlist takes in the group.
All the playlists will now have the same suffix appended to them. (Creating additional playlists in any of the group tracks will increment all of their playlists to keep them synchronized.)
All tracks in the group have playlists numbered with .01 suffixes (even those tracks that were added to the original group after the earlier takes). Empty playlists are automatically created on these newly-added members so that playlist numbers match across all members of the group.