Add Spotify Playlist Folders?

I’m enjoying Pi MusicBox as a way of streaming Spotify to my audio system. However, I have a lot of playlists, organised into Playlist Folders in Spotify for ease of browsing.

Is there any way of implementing playlist folders in Mopidy/Pi MusicBox to make it more user-friendly?

There isn’t an open issue for this, but it is very much in scope for the current cleanup of the mopidy-spotify extension. So should work as soon as that ships and PiMusicbox updates to the new version.