Comment 6 for bug 1390346

Based on the lack of editing support for BeatMaps I think we can't do this for 1.12.0.

Also, it just behaves somewhat unexpectedly with master sync. If a track speeds up leading up to a drop or breakdown or something then master sync darth vaders the track to keep it in sync with the master. While powerful for syncing hard to sync tracks, you kind of need to know what you're getting yourself into.