On RPI, I use the Amber skin which displays two rows of items one below the other : the recently added and in progress (both for movies and series) and the recently added and recommended (for music). IMHO, these are quite efficient methods to access media most of the time and it would be awesome to replicate those on MrMC.
Keeping the "in progress" option checked for now.
Anyway, thanks for bringing Kodi to the Apple TV!!