Click Add Bookmark.
The bookmark appears in the bookmarks list. To go to the bookmark in your document, click the bookmark in the list.
Go to the Pages app on your Mac.
Open a document with existing bookmarks, then Command-K on your keyboard, then click the “Link to” pop-up menu and choose Bookmark.
Click the Bookmark pop-up menu, then do one of the following:
Choose a suggested bookmark: Choose a destination under Suggested Bookmarks.
Generate new suggested bookmarks: Choose Set Up Suggestions or Manage Suggestions (at the bottom of the pop-up menu), select the checkbox next to the paragraph styles you want to use for bookmarks, then click Done. To link to a new suggestion, click the Bookmark pop-up menu again, then choose a destination.