I like how you did this, also if you did this in a day, you have much more productivity than I can dream of, so fast!
I imagined if I would have created it, it would have been a very clunky dropdown with a very long list with every card position. Your idea of arrows works better. I just wish Sexscripts had an option to position buttons in a way where they aren't all in a line and could have custom positions to have the arrows with up on top, down under that and left and right to the sides. This works well though with the tool we are using.