I am an old Giga guy from the last century, but decided to incorporate K2 into my rig so I could get some of those great sounding Romplers.
Keyswitching while recording is a no brainer but live for the guys who really want the options of stacatto to swells and falls live w/o having to play w/ one hand I thought I'd share an ancient secret. I know guys who use Bass pedals, but there's other options, and I have used this 1U for a long time, and it also accepts SysEx from a sequencer's tempo track so it can be automated while recording.
I only use 3 switch pedals for this, and the rest for Wah-wah, multiple drawbar movements on a single expression pedal, Filters, etc.
It's pretty much for live performers, but I have noticed the time it saves when recording recently.