here is my design for my new MB ... Original size : 500mm/350mm My problem is : 61 encoders + 43 buttons = more than 128 DIN ..... Must i use another core ? If yes, i want to use it as i use my MB16+, i mean with "layers" ... my first layer command my first mixer in Reason, and if i switch (with the 4 switches on the MB16+) to the second layer, it controls the second mixer ... But i don't know ow it works with MIOS .... :-[