Emax

Anyone have any tips or a tutorial on how you would setup the Emax up to have several samples being triggered from the 1200, like people do with the 1200&S950 combo mostly in hip hop (house for me!)?  I do have the midi pad/note number chart from the 1200 forum. So I would be halfway there already.  I know you put both units on the same midi channel, and the pads correspond to a note note number on the Emax. But my question lies on how to get the Emax to load multiple samples at once verses jut once voice. So this would be mapping a different sample on each key that corresponds with the 1200 pads?  This is where I get stuck. I knew how to do it on my EII and EIII but it was a hassle. Anyone have any insight on how to do this in a reliable fashion?