Please bring back the trees and drag-and-drop options, especially for the playlists. I have a lot of music and several hundreds of playlists. Unfortunately, I cannot properly use them in the newest versions of Helium (12 or 13). Browsing several folders is a pain, I cannot fill the playlists from the Music Explorer via drag-and-drop and I cannot drag-and-drop playlists in other folders.
I am a long time Helium user, my first version was 10 but I also bought the updates until version 13. Unfortunately, I find myself using only version 11, since a media player without proper implementation of playlist is useless to me. All of the above was bautifully implemented in version 11. Please, bring those features back.