1. Click Page in the left menu, then right click the icon of the page you want to move. From the popup menu, select More options, then Move Page.
2. Click an arrow to indicate where you want to move the page.
(Note: you can move a page inside another. To do this, click on a page name instead of an arrow in step 2 then click on the arrow that appears. A page that is inside another will usually appear as a fly out menu on your website that appears when users hover their cursor over the container page)