You can unhide a page by simple drag-and-drop:
- select the page you want to unhide in the HIDDEN section at the bottom of the PAGES panel
- drag and drop the page to the desired location in the MENU section of the PAGES panel:
The page will immediately appear in the Navigation Menu.
You can also unhide a page in PAGE SETTINGS:
- in the PAGES panel, hover over the hidden page and click the Settings icon that appears to the right of it:
- click the UNHIDE PAGE button under PAGE SETTINGS:
The page will immediately appear in the Navigation Menu at the place before it was hidden.