I need the ability to set only a few channels active. I setup for eg chans 1-3 as vocals, chan 15 and 16 for back tracks and use 2 of the 4 effects returns, So I need to see ONLY chans 1-3, 15, 16 and the 2 FX chans, and this must be saved so I can recall this later. This will eliminate scrolling through the whole channel list if I need to adjust trax or fx...