“best thing if you want several mics to trigger the track down is send all relative mic sourses to a mix bys ie mix1 take a short xlr back into a spare channel from the mix1 and then use that channel to trigger the track to lower and addign that input to LR and not any of the other mic channels oh and assign mix1 to post fade”
It is not necessary to hard patch the Mix. Simply select the Mix as the trigger source for the Ducker. Using a cable back to a channel burns a channel and requires fiddling with channel assignments. Keep it simple, do it right. Avoid the hard patch.