Great news! Thanks Thorsten!
I think I am going to try and implement this with a dual track fader (log for audio, and linear for fader movement).
Would it be possible to chain 32 moving faders through 4 MF_NG modules, to a core that runs HUI emulation with a DOUT (LED's) and DIN (pushbuttons for mutes) module as well?
My idea is to use the DINs with pushbuttons to activate the mutes in protools, with the DOUTs responding to the state of the mute in protools, lighting an LED and driving a normally closed relay to open (hence, muting)...
thoughts? I should really look deeper into it, but with a bit of tinkering it would probably also be possible to implement a simple "SOLO" button that flips the state of the pushbutton to mute everything but the channels you select...