How to place all languages in the same PO

Hello. We recently did a DTP project with 25 target languages. They were all worked on by the same designer. When it was time to issue the PO, the system wouldn't let me do it unless I created a PO for EACH language individually. I wanted to just have all languages in the same PO so I could issue a PO for the total amount for the vendor. Is that possible? Thank you!