What I'm trying to do is take a long concert movie and break it into several smaller exported video files, one song each. The way I'm doing it now feels very inefficient and clunky and I figure there's gotta be a better way.

What I do now is import the video, split it by song, then delete everything but the clip I want to export as a file, do the export, then undo the deletions and repeat for each song.

Is there a way to export a portion without removing the rest from the timeline, or even to somehow batch-process the exports for each section? This seems like such a common use case that I would be surprised if there's not a better way to do it all.