Sorry. I couldn’t find a way to make it work. In one of the bands I perform with, we don’t use an ambient mic, because our vocal mics picked up too much crowd chatter in our IEMs as it was. We couldn’t hear our vocals very well, so I put a gate on all our mics, problem solved. Crowd noise will not trigger the gate to open, but our vocals would. But, of course, we use electronic drums, and no amps or instrument mics. Everything is direct into mixer. We found we like it without the ambient mic. Just like rehearsal. I can also enable/disable the gate with a touch of a button on the digital mixer if I need to. Another beauty is muting the mains so I can talk with the band members if the need arises, such as…man did you see that blonde on your right?