Okay added the single key disk swapper. So it works basically how you would imagine, a key is assigned to be the Disk Swapper (default 'p') and when you press it it will insert disk 2, then if you press it again it will insert disk 3 .. and so on up to the number of disks the game has. So if it has 4 disks it will go 2, 3, 4, 1, 2, 3, 4, 1... etc. Works fine for me here, so let me know if there are any problems. That Joystick/mouse auto selection sounds like it could be handy