Hallo everyone, In the beginning, sorry for my english. I am interesting in building the clone of Mackie Control Universal. Almost identical is the MIDIBox LC, but there are 8 pots only. Is it possible a implementation of the 9-th pot (MASTER) in MIDIBox LC. If yes, what can I do this. Which additional elements are required and which changes are required in firmware? Greetings Lureks