Hello, I want to use my DTX-MULTI 12 as a sound module to play mallet parts (glockenspiel, xylophone, etc.) live, controlled by an Akai midi keyboard. With the keyboard connected via midi cable to the DTX, I am able to control the DTX on midi channels B1-B16. How do I select the specific voices I want (most are in the GM voice list)? I’d also like to do the same with my DTXTREME-III.