Many users have some particular PLTCFG files that they need for printing. But it is very much staining for them to choose it every time from the Print dialog.
This can be done using a single key-in, MDL KEYIN plotdlg print pltcfg_and_dialog <your PLTCFG file name> (see the screenshot below where the PLTCFG file called PDF2 has been chosen directly in the Print window)