I'd love a feature in which I can simply mark/tag a file 'Done'(or similar) whenever I'm done with it. If I have a folder full of 200+ files which I need to go through (videos or music), then it would really help if I could just those that I've seen as 'done', or better yet, simply those that I open as 'done'.
Is there any niche extension/script that can do something like this?