Have you tried using any of the sorting mechanisms?
I have and under file name I can separate videos from collections. My videos file location has no subfolders other than episodical containers I create. This however I have not found a way to make the default view. I do not believe that when in file directory view that further filtering is capable (only action, directed by, HD, etc) but I am not very experienced with tags and views. The entire data grid plugin and media identifier is something I haven't looked at much.
QOrbiter btw was looking really nice last time I saw an update. Just thought I would mention that again here. I because I have used mine so long am partial to the iOS album view and the ability to "flip" the cover art onscreen and see the track listing. As you experiment with views, menus and animations you might want to see if "something artistically inspired by, yet wholly your own creative work" would work with your UIs flow.