I'm rusty--just came back to InDesign 5.5 on the PC after a two year break. I'm updating a book design I did for a client years ago. He changed the size of the book, so much of the layout must be adjusted. The chapters had different page headers on the right-facing pages, and I had a way to edit the master header on the different pages. Can you please remind me how do do that?
If the B, C, D masters are based upon the A master, overide the headers (shft+ctrl+click) on B, C, D to edit them. (Having B, C, D based on A allows items like autopage numbering to be consistant on all masters.)