It would be amazing to allow a timeline to have an offset Start TimeCode.

The scenario is as such

A master timeline synced to timecode would playback a whole show, the master timeline contains other timelines for each song/moment in the show. This way, when editing a specific song, it can still be playing back in sync and have it's timecode offset relative to the whole show, and yet when we play back the whole show in the master timeline, that timeline can be synced to the master of the show clock.

For example
Master Timeline --> TimeCode starts at 00:00:00:00 [all media placed in this master timeline would follow master timeline timecode and ignore their internal TimeCode]

Timeline (Song 3) that is supposed to start at TimeCode 04:00:00:00 in the show should be allowed to offset it's starting to TimeCode 04:00:00:00 when editing it.