When preparing single track assets you may want to be able to expand it to multiple tracks. 

Converting single to multiple track asset

  1. In Assets edit a single track asset.
  2. In the track window on the left side of the window you will see a Change to Playlist button at the bottom.

  3. Click the Change to Playlist button. 

    The page will now change to the Edit Playlist UI. The already existing single track is added as the first track of the new playlist.