Help on GR-33

I am having problem with my GR-33.
I would like to know how u can use it as a sound module also? After I lay more then 1 track on cakewalk..........when play back, it doesn't play all track back. It only play one track and the rest is gone. Can anyone please help me or show me how to use it as a module, thank you.

i don't know what a GR-33 is, but as far as cakewalk goes, make sure playback is checked in audio settings. also my cakewalk sometimes mutes all tracks except the one im playing on. so check muting. hope this helps.