HELP!! having midi problems

how do you use more than one sound from a sound module (like mophatt) simutaniously while recording a track in seq mode?

SWITCH THE TRACK IN THE PART SECTION FROM PART TO MIDI-A (OR B) THEN SELECT THE CHANNEL YOU WANT(IT HAS TO BE A DIFFERENT CHANNLE THEN THE FIRST MIDI TRACK OR ONE WILL OVER RIDE THE OTHER AND THE SAME SOUND WILL COME OUT OF BOTH NIDI TRACKS) THEN GO TO PROGRAMS AND SELECT THE SOUND YOU WISH TO USE
THE END