To hide a page on your website, follow these steps
Step 1: Click on the page icon on the side bar
Step 2: a side panel will open up click on your desired page then click on the settings icon.
Step 3: a modal will open up, click on the Password holder, a password input field will appear at the bottom. Input your desired password . Then click on the Save page Button to save and automatically restricts the page from everyone to see except those with the password with that page.