That did help some. In addition, I found these instructions that seem to get everything working.
I’m using a CUPS raw printer to print to a script so we can manipulate spool files with some PJL code to have the actual printer staple them. This has been a very handy setup. The CUPS printer was easy enough to share through Windows iSeries Access, but this direct connection saves on the dependency of having to have another session started. Here’s the link that helped me discover this technique of printing to a script…
Like I say, this has been invaluable for adding the PJL code to the spool files, because they are released as individual spool files instead of one large document so even if there was the option to staple in the program releasing them, they would still be seen as multiple documents. So what we have is a Linux box set up serving CUPS with custom scripts acting as the printers that catch the spool files and distinguish the cover pages that need to come from a different drawer and other pages that needed to be stapled.
Thanks again for pointing me to the pdf. It did help in the overall picture.