Damir I'm trying to not get addicted to having too much control 😆 😆 for the day that I don't have the luxury.
Because I make my own backtracks, all are well matched in volume, so adjusting that would then throw off my vocals and guitar volumes. Changing tempo live is something I still haven't tried. The idea is quite intriguing! Definitely when I can get hold of a hand-held remote, I will. Just wish someone could suggest something other than the Digit III...??
For years, on my old system, I only had two foot switches. One for pause and one to start the next song. Anything expanded on that is a bonus and is something I'm looking forward to having available.
I wonder if anyone's done anything wild and creative like using a pedal to enable/disable or change volume of the 2nd track of a multitrack song... I first tried this about 10-years ago. When playing electric guitar, I missed having the acoustic guitar in the track. I tried running the full track on left and acoustic guitar on right, then just had to pan them to get a mix. But that idea never stuck. In this day and age, I'm starting to use more backing vocals in my tracks. (In the old days, people would frown upon musos doing that!)