Hi John,
don’t know if you’ve ever used the registration sequencer, or if you would actually have any need for it. I had to use it with my p121/sx900 setup, because I couldn’t reach the registration buttons, when I needed to change them. So , I simply put in the order the registrations needed to play back for a particular song. Ie reg1 verse, reg2, chorus, back to reg 1 for verse, reg 3 for chorus, whatever. This way all I had to do was tap the pedal when I needed to change registration ie tapwent from reg 1 to 2, tap, went back from 2 to1, tap went from 1 to 3 etc

Sort of freed the hands up, as well as the brain, didn’t have to remember which registration button I had to press. Haha.

I too find it interesting learning new things I can do on my keyboard. Tend to think it keeps my brain active, because I actually have to think aboutit , and work out how to achieve what I want to do.