I have recently discovered the Computer Workout feature, and I love it! I have a question though, is there an option where you can setup a custom position either manually or using FEN notation and play it out in Computer Workout? If not, I think it would be very nice to be able to do this, and help gain  greater understanding of your own past games.  Thanks!

i would ask the staff,message erik or another member of staff they proberley tell you :)

There's the option "Computer analysis" after you finish your game. Your whole game is analysed, but you can't set up custom positions.