I need two things, and two things only:
1. Projector screen is BLACK, and plays videos that I select on the main screen.
2. PREFERABLE, but not terrible if the software doesn't have it: allows me to fade out a video that I wish to end in the middle.
I looked for HOURS upon HOURS and could find NOTHING that suits my needs. The closest thing I could find is ProPresenter, which blacks out the other screen and all, but it's too laggy and doesn't work too well with video.
I think I'd even pay someone to build the software for me, even if it's the simplest thing in the world (I know NOTHING about programming), if it could be made by Sunday.