output lighting midi with a behringer ddm4000
	
	
		so on my ddm4000 i never use the mic channel or the sampler so i decided to use those controls for midi instead, now ive got the midi ins and outs of the ddm going into a usb midi keyboard and im having no problem mapping the controls but i am having problems with getting the leds to light up--am i missing something here?  does anyone have any experience getting this function to work with the ddm?  i did it once with a maschine and it was pretty simple so i feel like im just overlooking something really stupid or the ddm just isnt compatible