I have question regarding the QU-Pad app. I cannot find what are “ON” buttons located next to each fader for. If I turn a channel off then signal still goes to the effect units so it is different from MUTE buttons. Also, where I can find buttons which correspond to these ON QU-Pad Buttons?
Sounds like you’re talking about the channel assigns. Hold down the assign button to the left of the SEL keys. This should show you the assigned routing for the currently visible mix. Also viewable on a per-channel basis from the routing screens.