Vantage 4.0 GL Multi-plant Set up

Good Morning,

We are in the process of making the step to 4.0 and are not sure on how to
set up
the product groups. We have 4 plants / division. All plants manufacture the
same parts .
Do we need to set up duplicate product groups for each plant.?
How should this be handled?
We want see the sales broken out by each plant separately and combined!
Please help!

Thank You in Advance!

Don Kollmann
Heartland EPS, WI Division