If you want to modify your website's top navigation menu, follow these steps:
Navigate to Website > Navigation:
Here, you can manage your navigation menu.
When editing or adding your navigation menu, you have these choices:
Add Nav Item: You can add a new navigation item
Edit Nav: Edit the navigation label
Actions:
Edit Page (only available on nav links to custom pages): Edit the page
Delete: Delete the navigation item
Positioning Your Nav Items: Drag and drop the navigation items to the desired position in your website navigation menu.