You can add or delete pages by clicking on the 'Pages' button to the left
There you can add/delete pages or edit their settings such as - page name, URL, add Alternative Header or change the Search Engine Settings that helps your page to be more popular. You can enter keywords or description associated with each page. You can also access the Blog and Portfolio pages and their functionalities.
You can change a homepage by clicking on the 'Set as Homepage' button in a page settings pop-up.