We want to run wireless lavs on channels 1 and 2, a shotgun on channel 3 and internal mic on channel 4. I put the smad-p3 shoe adapter on the hotshoe, plugged a sony UWP receiver into it and set channel 1 to "shoe 1". I plugged in the second sony UWP receiver via xlr to input 1 and set channel 2 to "input 1". I then plugged the shotgun into input 2 via xlr but it won't let me set channel 3 to "input 2". There's just no option for it. Channels 3 and 4 don't give an option to assign to one of the xlr inputs. So the only way to do this is to assign shoe 1 to channel 3 or 4 which makes it so that you can't monitor just the lav mics?