Multiple transaction type per location in projects

Hi,

We are interfacing Invoices from Projects, and we want to assign different transaction type based on location, since we have requirement to have different AR transaction numbering based on each location. We are able to achieve this using copy document numbering to transaction numbering feature. But since we need to interface one set up invoices from Project, where we are stuck to make this change.

How to achieve to have multiple transaction type per OU, based on the location. Is there option to choose the transaction type or default based on the location while creating Project information.