It would be very helpful to be able to create a prime invoice by owner code instead of cost code. Sometimes there are several items within one owner code and it would be very helpful to see them all grouped together when creating the prime invoice instead of just on the customer documents.
If every line on your Prime Contract Schedule of Values has a unique Project Specific Job Cost Code, you have an optional format called "Prime Invoice - Fixed Lump Sum - Job Cost Codes Grouped by Owner Code". Other Prime Contract Types have similar detail report templates in this style. I attached a screen shot to help you find this. If this is what you are looking for, please reply, so I know to mark this suggestion as complete.