I am going to assume this feature is not available. I would love to see the playlist be a true playlist that you can move through the songs with the media player. I was hoping subsonic did this but it seems like the only thing you can do is make a playlist and have that streamed to you. Other than that I love everything about Subsonic!
So here is what I would like to see. Either an option where you can choose how the playlist is created. I know you can put playlists in a playlist so this shouldn't be a big problem to do. Simply make a seperate playlist for each song in the "parent" playlist so you can skip through the songs.
Hope that was clear enough. Thanks for the great software!