In patch mode on helix could you for example, have the bottom buttons change patches, but the top buttons turn on and off fx stomp delay etc? You may have a crunch sound that you would like to just click on a delay without having to change patches or change into "stomp" mode.
Next is it possible to send out of the xlr out to a pa etc. WITH cab models on, and at the same time send out the 1/4 jack into a power amp and can WITHOUT the cab modelling on