I inherited a document that was created in QuickSilver (which no one seems to have). I converted the resulting PDF to FrameMaker and then reformatted/styled everything. Now we are to the point when Help files are being requested.
Apparently, in QuickSilver, you can bookmark sections that automatically generate PDFs of, for example, just pages 2-14. The result was a suite of 200 or so Help files based on snippets of the whole.
Does Frame have a similar bookmarking/tagging options to automatically create Help files? Our other option is to just Print to PDF and specify the page range. Doable but not automated.
I don't use QuickSilver (had to google it to see what it is), but I think CarolineTa's seconud answer is likely what you are looking for.
Condition tags allow you to define multiple versions of a file in a single document. Once the tags have been added and assigned, you quickly hide/show the content using a specific condition and then publish the resulting PDFs.
From your brief description, it sounds like you need two versions:
The complete document
Just the help pages
If I am understanding that correctly, you can set up a condition tag for the content that is not part of the help files, hide it to publish the help pdfs, then show it again to publish the entire document.