Hi, I'm three days into WK 7600 ownership and having great fun so far.  A fairly specific question around Hammond emulation (very impressed so far).   What I'm trying to do is split 2 Hammond sounds so I can emulate a 2 manual keyboard, so when playing bass the percussion harmonics still work.  So far so good, but the rotary button doesn't work in this mode - not so good.  Sorry if this is covered else where, but is this a "feature" of the keyboard, or is there way round this. By the w