Please update AMM, with the option to insert AMM/Dugan post fader.
It´s necessary to do this so you can easy with the faders set the balance of the mics and choose who should contribute to the gain pool in AMM, without to use mute. (You want not that mics off-stage shall contribute)
All other consoles I have work with like Yamaha, Soundcraft, Digico use Dugan post faders.
Thanks
/J