Stephen,
I have done this with a Fieldpoint AI module, and I assume it will work with others.
You need to use FP Explorer (or whatever the FP configuration utility is called) to define your new group of channels with a single name. Basically, you create a new tag then check all the channels you want to use.
This is much more efficient than trying to read them one at a time.
Bruce
Bruce Ammons
Ammons Engineering