Navigate to Insert Tab --> Page Break > Section Break > Next Page. This begins a new section starting on the next page.
Double-click within the header (or footer) area on the next page to open Header options.
Uncheck Link to previous section to break the automatic mirroring of header/footer content.
With the link disabled, enter the new header or footer text (e.g., chapter title, page number) that applies only to this section.
Repeat these steps for any additional sections requiring distinct header/footer formatting.