Reply to DM2 Replace buttons with rotaries

Speaking of the DM2 - does anyone know if you can replace any of the buttons with rotaries? I really like the idea of re-housing the DM2 in a custom box - but I'd definitely need rotaries/faders... Maybe the 4-banks could accomodate this?

I've got 2 DM2s - it kills me that I can't use 'em both at the same time!

Does the DM2Midi software allow for this??? (I'm sure I'm just wishing , here...)