It would be really helpful for clients to be able to add line items, columns, and edit the designs of purchase order templates more to their own needs. Not every client needs the same information on their purchase order, so being able to edit and change things around would be wildly helpful. I have a client that specifically needs to track the number of pallets per product and right now the only way to handle this is to put it in the description. If they want to run a report though, they can't because the number of pallets would only be in the description and not the custom fields reporting.