Thank you for taking the time to read and respond. Your anticipated reply was what you are likely required to do with reference materials. Unfortunately, the suggestions really don't help in this case.

Saving the changes to a "memorized" report is not useful. When you go back to the P&L report and "double-click" on another revenue line item, the transaction detail reverts back to the system's original default report that does not have the changes needed to show customer and vendor fields. 

Again, this is a coding issue that the engineers will need to correct. For example, they can add code that says "if the Name field is blank, pull in field from Vendor and/or Customer". That should solve it.