[SUGGESTION] New segment category: "Loop Helper"

New category that would be disabled by default. It could be used when none of the other really apply. Users could put this section at the start/end of a video so that I can loop cleanly if user were to play the video in a loop. Would be most useful for music videos of course.

I'm still not quite sure how to name this category appropriately to make its function as self-evident as possible.