Shuffle all songs

I would like the music playing feature in Plex to function like the way the ipod/iphone handles music. It seems I can only shuffle albums or individual playlists. I want to be able to go to all songs and be able to shuffle through my entire library. 

http://forums.plexapp.com/index.php/topic/46288-popular-playlist-system/page-4?hl=%2Bshuffle+%2Ball+%2Bsongs#entry407139

Early 2021 clean-up: implemented