Control Surface question

I use a Mackie Control and it is touch sensitive. There is also a channel select button on each channel. As to the buses there is a buss switch that will let one control the buses. The master buss has its own fader.  
 
I think the fader port will need to have some kind of selection button for selecting tracks and buses.  

Thanks for the replies. Just to clarify, the Faderport does have a bus switch and it does work to scroll and control bus volumes. Below is a rundown of the differing actions and behaviors I'm seeing between the track and bus panes using the control surface.
 
Track Pane
A. click on any single track in Sonar and the Faderport fader moves and now controls that track
B. scroll through tracks using Faderport and Sonar brings focus to each track as it's passed
 
Bus Pane (Faderport bus switch is selected)
A. click on a single bus in Sonar and the Faderport fader doesn't move or respond
B. scroll through buses using Faderport and Sonar's WAI moves through each bus but Sonar's selected bus never changes
 
I guess I'm trying to find out first if the behavior I'm experiencing is normal or if Sonar is capable of mirroring the behavior of A and/or B from the Track pane within the Bus Pane.