An option to remove proxies from clips.  Otherwise the only choice is to delete the proxies, but then the program is constantly bugging you for them when you relaunch.  I'm having an issue where I replaced proxy files with new transcodes, but the system still shows them at the wrong size in the timeline (match framing shows them as they should be).  I'd love to be able to simply delete the originals and start over, but it isn't possible.