Select songs then pick a song to start playing. Once on the "Now Playing" screen just scroll down & right beneath the playback controls, you'll see the shuffle & repeat options
BTW...iOS9 also allows you to shuffle your library.
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Hmmm, that must have been added to later iterations of IOS9, because I dont think it was there when IOS9 first came out.. But heck yes! Works for me...Thanks!
Woah, I didn't even know you could keep swiping up from the now playing tab! Still having a few issues with the order of 'up next' songs, but I've found the shuffle toggle! Haha