TTG
I use 6 button pedals on my G70 and KN7000 in a similar fashion as you. I set up variations in style and instrument, then pedal through them.

On the Nord, I use an expression pedal and my Ventilator.

My vArranger and Kurzweil need just a volume pedal.
Bernie
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact