Making an Auxillary bus

how do you make an auxiliary bus to use as a separate master fader for your vst instrument? i have all the vst channels open now i want to control them with a separate master volume.

Right click in the track list. Add group channel. Route required tracks to it.

how do you route tracks to it? excuse me because im a beginner.

As a beginner, it´s a good idea to begin with the manual with such basic things.
You do it the same way, you route a track to the master output - in the routing panel, either in the inspector or the mixer.

i found this and this is really helpful!!

http://www.youtube.com/watch?v=IBnB9G85lLo