How to Duplicate Portal Records?

[MTG]

I want to have a "Duplicate order" button to duplicate a purchase order. Since the ordered products info was from a portal, it only duplicate the order info like PO#, date... the product info would be left blank. Is there a way to carry over portal records from the last record? I tried Go to Portal Row (last) then duplicate record. That only duplicate one portal row within the same PO. Not what I want.

Thanks a lot for any help.

-- MTG --

[Jeff Bills]

Give us detail of the relationships, por favor