The title kinda says it all. Basically this feature would just be something that would allow me to go back to a previous version to retrieve a component that I spent awhile working on but then randomly disappeared, and then saving that as a new design or copying it or basically having any way at all to pull it out without having to redesign the thing even though I've already wasted more time trying to get it back than it would have taken to redesign in the first place NOT THAT I'M ANNOYED OR IN ANY WAY EXTREMELY FRUSTRATED AT THE MOMENT.