Hi Tony,

The four switch foot controller FZ-FC2 definitely does work with the KN7000. Also Carillon Studios in the UK had a variant which allowed you to use four individual foot switches thus allowing you to place them wherever you want. Alternatively if you have the resources to build your own there was a suitable circuit on a site of frequently asked questions on the KN5000. I don't have the address but I accessed it through the links on Gunnar Johnny's site. I used this approach and fitted microswitches either side of the expression pedal and left and right knee press swithes so that all can be operated without removing my foot from the expression pedal (my left foot being required for MIDI bass pedals).

Cheers
Len C.