Hi Chas,
If I understand your question correctly, you are referring to what we use, a BUS for each group?. If so, that is the normal way of doing things in most DAWs. We create tracks, we then make a folder, in Sonar, and if want to use say multiple guitars(place in folder), send them to a bus. On that bus we then give it effects we want to share, then, send that BUS to the master out. At first it may seem complex, but the workflow of it works really well. And, I might add, it basically emulates real hardware AUX group setups on Mixers. SUB groups.
Having said all the above, you can just do individual, no folder stuff too, if you prefer. I can tell you though, grouping stuff of the same types in folders, make great workflow over bigger projects.
If I am on the wrong track, tell me more :)
Tony