Korg N5 Question

[biodad]

Greetings

How do I use the 4 assign knobs to be used to fade in the volume of other patches? If they can not do this, can they adjust midi channel #'s so when I crank them fully counter clockwise they are on midi channel 1 so that patch sounds and has volume? Bring 4 new sounds into a combination but with midi channel #'s ?

I once had a Korg 03RW with the RE1 Editor and those sliders allowed me to fade in patches into the combination. By sliding them up or away from me, like pulling out a Hammond drawbar, they brought the volume of a patch up. It was nice being able to blend in strings, choirs, brass, and other sounds so easily.

I do own a manual and it is very vague.
Any help is appreciated.