Trying to set these up to teach some classes on line. What's best practices for setting up these two pieces? The ATEM Mini doesn't have a headphone out so I cannot monitor what is going into it. Also, when I open Zoom, I cannot out output 1&2 of Totalmix FX. Would like to have my master out going to either the camera or ATEM mini. Is anyone else using an ATEM Mini?