Each page's title appears in the left-hand sidebar and in the Table of Contents menu. Here's how to change it.
1. Select the page in the left-hand sidebar, then click the "Page Style" (pencil) icon on the right-hand side of the editor.
2. Expand the "Page Title" section at the top of the Details panel.
3. Type your new title in the Page Title field.
4. Click anywhere outside the field and the title saves automatically. Voila! The sidebar tile now shows your new title.
Tip: The page title is what appears in the sidebar and Table of Contents. The heading text on the page itself is edited separately, by clicking into the text box.
