So sorry m8ey the answer was 2 summer!?

Mackie controler... is basically a control surface that looks like a hardware mixer, it's designed 2 control yer cubase (or logic, etc...) just like u were a peice of hardware... I figure u must know this much...
If I'm not wrong what they menat by the Q was if the support 4 the mackie extention (add on) was also implemented, as u can buy an extra 8 channel expander so u can control directly 16 chs... a "little2 more usefull that a bunch of wild mouse clicks!! ;)

Hope I managed 2 explain it properly.

Z