I acknowledge the need for managing your spotify data from CuteSpot, thus I started the UI for it (the backend is already there) what should work so far:

Set collaborative mode
Renaming of playlists
Remove playlists /folders
Unsubscribe from playlists

just long press on the PlaylistItem to see the ContextMenu.

Please test this:
[LINK REMOVE] please test version below

I hope I can soon work on adding playlists / songs to playlists