Set/Assign Sub Sequence Track In BP

SOLVED: There’s no clear documentation on how to do this, but if anyone else tries it’s pretty simple.

  1. Get your LS somehow (Get Focused Level Sequence for example).
  2. Get Tracks > Cast To MovieSceneSubTrack or just Add Track of Class MovieSceneSubTrack.
  3. Add Section (or Get Sections of you already have Sub Tracks) > Cast To MovieSceneSubSection.
  4. Set Sequence, use your sequence.
  5. And to auto set the playback range… Get Sequence from the MovieSceneSubSection > Get Playback Range > and Set Range of the Section to match the Sequence.