I have a camp I am running in a few weeks. We use the PreSonus computer soundboard and run our in-ears with the Qmix-UC app. Often times we have to go in to the Qmix app to unmute the in-ears when turning on the system. At this campsite there won't be wifi to use the app, so we will have to set all the ears through the computer, but we are worried we won't be able to unmute it without the app. Does anyone know how to unmute the In ear Channels through the computer?