Just noting that the "right" way to enter an RFE these days is via SDL XPP Ideas.
That allows others to vote and comment on the RFE.
BTW, if you were talking about doing this with a psfmtdrv workflow (versus divpdf) and you can figure out what would be the "PostScript code" (i.e. a form of a pdfmark) needed to define a "button" in the resulting PDF, then you might be able to use the GEN type of :pdfs/:pdfe macros to do it.
That GEN type pretty much lets you spit out whatever PS you want for a pdfmark.
But if you're talking about a divpdf workflow, then it would require an XPP development effort.