What: More options for saving and reloading sets. Specifically, the ability to reload a set to its last saved state. Also the ability to disable the autosave feature and manually save.
Why: Sometimes I like to load up a set and do some destructive exploration without the intention to commit any of the changes I've made. Currently the only way to do this is to duplicate a set or clip and then delete it when I'm done, or else I have to press the Undo button repeatedly until all changes are reverted. Would be nice to have a simple "reload set" option in a menu somewhere so I don't have to abuse my Undo button or risk deleting the wrong set/clip.
Also the option to disable the autosave feature for people who prefer to manually save, which would help avoid accidentally overwriting your work.