If you have the appropriate permissions you can add, modify, move or remove pages from your website. All of these functions are performed via the Page Manager which can be activated by click on the [ Page Manager ] item in the Admin menu.
Once the Page Manager has loaded you will be show a tree-style view of your websites pages similar to how files are displayed in Windows Explorer. You can expand and collapse nodes of the tree by clicking on the [ + ] and [ - ] buttons.
All of the page manager functions require that you first select a page to apply the function to. This can be done by clicking on the page in the tree menu.