[Zubersoft]

I think it's plausible that I can add undo/redo support for some operations, but it certainly won't be easy. I also would only support undoing the last change made. I should be able to figure something out for undoing changes made in the setlist/collections editor (and I may move to having a dedicated save button for the editor so that you can cancel all changes if desired), but I can't support undoing certain actions like deleting a song, as the underlying file may be deleted as part of this operation, and the complexity involved with undoing the deletion would be significant. 

Mike