KN7000 Sub Out

Hi, I seek knowledge!
Trying to work out how to use the Sub Out terminals at the back of the KN7000.
Page 161 of the Manual mentions it but refers to Page 200.
Page 200 states "The sounds from the desired parts can be output independently from those terminals (Refer to Page 161)". This round robin is quite unhelpful.
What I want to know is where is the "Part Assign Button" and the "Expression Button" as mentioned on Page 161?
Can anybody shed any light?
Keith

go to the sound menu and the separate out setting. Everything is there when you select a mode.

The sub outs have been a saving grace for me because I HAVE to reEQ the drums to make them acceptable for me. I make adjustments on my mixer, feed back into the LINE INputs and the newly EQ'd drums come throught the speakers as if they lived there. Neccessity for me.

TechnicsPlayer
Thank you very much. I had looked at this menu with setting to "OFF". Didn't realise that it changed when set to "STEREO" or "MONO x 2".
Thanks again,
Keith

very welcome