Adding custom menus, sources, etc

I currently have a bunch of Documentaries and Skate videos in my library, which I would like to categorize separately so that they don't show up in movies.

What I would like to do is create separate sections in my home menu for Documentaries and Skate Videos. I would like these to have images and metadata pulled in, but I would also not want them to show up in the movies section.


Any ideas?