does fedex module allow for two shipping from addresses?

Client will be shipping his products from two different locations. He is wondering if its possible to have two different shipping from addresses that fedex shipping module can use, unit shipping, and item shipping module can use? My thinking is one but I wanted to make sure. Thanks :unsure:

Client will be shipping his products from two different locations.
Ask them what will be used if a customer purchases a product from each??

Answer: only one by default
Custom code for anything else with the caveat I asked about above

How is it possible through code? Doesn't the shipping from address and total product weight get sent to fed ex server one time for a shipping cost and then that total shipping cost get sent back to zen cart for display in shipping calculation page?

Basically, the way it is set up is someone can purchase cash register tape from one warehouse. Depending on where the buyer lives, the box will be shipped to another warehouse if it is closer to the buyer's address. If the originating warehouse is closer, then that one will be used. I have the originating warehouse as the address that is being used for calculations. Any help would be appreciated.:wacko: Thanks, cem