Adding to the Site Map
A Web Man webmaster has dragged lotsalinks.htm from the folder view on the left, under Kid 3 in the navigation view on the right. That adds a link to lotsalinks.htm to the site map. Now that file is at the same hierarchical level as kid1.htm, kid2.htm and kid3.htm.
Then the webmaster can save the map and rebuild the navigation. All pages with links to kid1.htm, kid2.htm and kid3.htm will also get a link to lotsalinks.htm.