Summary: Create a unique page style for each header and add them by adding page breaks.

  1. Format -> Styles and Formatting.
  2. Click on the ‘Page Styles’ button (the fourth along).
  3. Right click -> New.
  4. Give the style a unique name.
  5. On the Header tab, tick Header on.
  6. Go to the page before the one you’d like to have the style.
  7. Insert -> Manual Break.
  8. Select Page break and choose your style from the Style drop down.

More in depth explaination: HERE.

Taxonomy upgrade extras: