Ok, so I'm the guitarist and backup vocals for my band. I have read that the helix has some pretty good capabilities for vocal processing, and with the number of inputs and outputs available, I'm wondering if there is a way to process guitar and vocals at the same time then run into the PA, using 2 separate channels, one for guitar and one for vocals. The sticking point I see is how to control and switch effect for both. Would I have to program a guitar and vocal effects for each Guitar preset?