Imagination!
On the Korg Pa4x there were three dedicated buttons;
1-Mute Accomp. 2- Mute Bass 3- Mute drums.

Then I carefully selected four pads that would support the style. I could now use my imagination and make changes to the style I was playing. It is another way to express what I was feeling.
Our friend Graham was on the right track.

I love music, John C.

PS, You could you registrations to the same thing, but that gets messy.