For your site you may want to have a page that is connected to your site, but is not visibly shown in the Navigation. You can create this type of page in the "Linked Pages" section directly below the Navigation tab. A linked page is created the same as a navigation page, but will not appear in your site's navigation. If you do want your linked page to become apart of the navigation, it is very simple to drag a page from "Linked Pages" into the Navigation tab, without having to recreate the page. You can also move a page from the Navigation tab down to the "Linked Pages" tab so the page exists, but is not currently viewable on the site's navigation.