If I share my library with a friend and he shares his with mine, I would like an option that filters what I see on his library to only show things I don’t have. I may have 100 films and he may have 100 but if you look closely, we may only have five that the other doesn’t have. When I go to look at his library I would like to ONLY see those five. No point to see the others as I have them (and am aware of them) in my library.
