Emax

Hi: I'm having some trouble working with an emax1 and a Kawai q80ex. I'm doing some phrases i.e. beat plus bass and I have no control with the proper midi channel assignation, the emax apparently  recognizes only one channel and can´t get channel separation and control track. Reading the manual they talk about the Supermode map but for me it´s a completely mess, somebody can describe it in simple terms?.

grettings