Thank you for your feedback
You can begin to add pages to your site menu when you have created more than one page in Website Builder. Once an additional page or link is added to your site menu, you can set the page or link as a subpage of a main category.
Below are examples of a site menu without subpages and with subpages. The first example shows About, Menu, and Gallery pages. These are three separate pages.
However, if you set the Menu and Gallery pages as subpages of About, the About option becomes a category and is no longer a separate page.