Fix it!!! – Playlist-Creator PRO: The Ultimate Running, Driving, Workout, Dance, Party, and Relaxing Music Organizer! Review

You can make playlists and delete from previously made ones but you can't add new songs to previously made playlists!!! fix it!!!
Review by Wright0776 on Playlist-Creator PRO: The Ultimate Running, Driving, Workout, Dance, Party, and Relaxing Music Organizer!.