How can I edit the tree that opens up to the left of the display so that I can get rid of things I don't use, such as "Images", "Performer Store", etc. I only want to see Audio, Video, Playing Now and Playlists in that tree. Also, is it possible to edit the display so that it shows all of the playlists listed automatically upon startup, rather than opening up the "Playlists" bar? Thanks.