Folders for playlists

Please can we have the ability to organise playlists with folders / sub-categories.  I've got so many that I've subscribed too, and it's easy to lose track of why I like each one.



Casual Listener

File -> New Playlist Folder...   (Ctrl + Shift + N)

Rock Star 24
Rock Star 24

This is already a feature. Do the steps Styrke has provided.  

Status changed to: Implemented
Music Fan

I don't see where this is implemented. I am also trying to create subfolders in a play list but this does not work.

Is there a procedure for that? Tks