You are in control of what links are shown to users in the main menu that typically sits near the top of every page on your website.
Go to Website > Website Navigation
Drag and drop to re-arrange.
To Add a link: click on 'Add Link'. You can define link text, who can see the link and the link itself. Client means logged in client and public means anyone who is not logged-in.
You can update an existing link to only show to a specific type of user.
You can remove links you added. To remove a web page and not just the link go to Website > Pages.