Hi.
I need to bulk check and change the page settings -> paper tray settings (first page, other pages) for several thousand word documents.
The reason is, that the former printer was a HP 2xxx, tray 2 was blank paper A4. Now that printer was retired, the printouts are handled by a Xerox Workcentre, that has to select the appropriate tray filled with A4 blank paper on it's own.
The secretaries now have to change the settings for 1st and all other pages from "Tray 2" to "Tray autoselect", otherwise the Xerox Workcentre won't print the jobs (-> Jobs get stuck: Wrong paper in Tray 2: A3).
And, no, switching the paper between the Xerox` trays is not an option, because then we would have the similar issue for other users using the same printer.
How to
- search for DOCX files with fixed paper tray settings in the document's "Page Settings" (German: Seite einrichten)?
- change the "paper tray" settings to "Auto select tray" automatically?
Any suggestions appreciated, no matter, what's the approach. 
Regards, Rudi.