This can be done... I had the same problem.
Go to the edit screen and at the lower part of the screen choose the uknown cont choose MSB then use the pen tool to input the MSB number (shown in the back of your DJX book under voices)
Do this by pressing Ctrl & Alt Then clicking with the mouse at the very first part.
Combine this with the program number in the inspector and
Bobs your Uncle
Hope this helps.

PS I use Cubase VST.

Mail me from my site and I'll help some more.