Yamaha ls9

Do anybody know how can I group channels in the ls9, because I want to have assign channels into groups but I don't know how.

Hi

You need to select a mix bus or 2 if u want stereo and change them from "Variable" to "Fixed". A fixed mix bus is what Yamaha calls a group.

Once you have done that in the mixer setup you can assign channel to that group by using the fader flip option (press mix buss button twice)and pressing the on button.