You're the second person to require this feature and it is on my list but there is currently no easy way to do it.
You could have a play with duplicating the freefall media and then trimming it but the music will not behave. If you send me a link to a video created using your current workflow, I can keep it in mind as I'm working on the next version.
It would be a complicated change to include the exit tab on the repeat freefall event but not impossible.