Resend Purchase Order via Email - How?

In R12, I have successfully setup the emailing of Purchase Orders. It works like a charm!

However, I have one question... How can I resend (re-email) a Purchase Order to a Supplier?

I created a PO and approved it, which submitted the "PO Output for Communication" job, which then sent the PDF to the Supplier. So far so good.

But then I went and added an attachment file to the PO. I want to resend the PO to the Supplier, but I can't figure out how (the PO is already 'Approved').

I tried manually running the "PO Output for Communication" job, but it only seems to generate the PDF, and not actually email the PO again (with the newly attached files).