I have a few large (>5k songs) music playlists that I use to sync to my phone.
It would be much easier to add and remove items from the playlists if the songs were grouped and sorted (by album, year, date added, etc.). Right now, the easiest way is to select multiple songs and remove them from the playlists via the Windows application - but it would be much easier to remove full albums at a time.
Early 2021 clean-up: duplicate
