We have a DCX master book, It includes all PSO documents that are the same for every product, mostly our procedures that describe how our process works. Our individual books contain the part specific documents.
This cuts down on time and the size of the PSO book.
I recommend you put a page in the Part Specific book that states the information for that section is in the master book.
We have not did this in the past, we are in the process of a launch and DCX decided to have us develop a master PSO book. It has helped a lot.