Creating a PDF to append to front of an existing external PDF

[Ultradistance2005]

Using FM Pro 13, I am trying to create a script to append several layouts onto the front of an existing external PDF. I can append them to the back of that external PDF easily, but that won't work for my use.

 

It appears I need to create my new PDF (called PDF 1), and then append the existing external one to that one (PDF 2) creating a final PDF3. What I can't figure out how to do is grab the external one (PDF 2), make it part of FM, and then save it as a PDF and append it to PDF 1 to create the final PDF 3.

 

Any thoughts would be greatly appreciated. Thank you.