Maybe this is an old feature request but I do believe it's worth mentioning again.
I gotta say that Musescore has become quite a professional music notation program by now. Is pretty easy and solid to use.
I believe there should be an option to add video with timecode along with some filmscoring tools as well (like marking the hitpoints). I think this would create a great motivation for making more music and sharing. Also for the people who do filmscore or are heading to this career or just experimenting with.