randomize playlist

If I want to play just background music before a gig, I go into simple player and load a playlist. That's fine. I drop in a few albums, but I want them to be mixed up, without me having to manually randomize the playlist. So a button that would randomize the order of the songs in a given playlist would be very beneficial. Not shuffle play though, because that makes it harder to check what has been played or not from the playlist before. Just a simple button that changes up the order of the songs in the current playlist.