To make changes in the page setup, right click on the page and choose "Edit". (Img. 2.2.1)
The tab "General" contains the page title information. (Img. 2.2.2)
The tab "Access" contains check boxes for hiding the page from the frontend and hiding the page in the menu. It is also possible to set publishing and expiration dates of a page here. (Img. 2.2.3)
The tab "Appearance" contains template selection for the page. All available templates can be found in the dropdown or by selecting through the thumbnails. It is also possible to set what template should be used for all subpages of this page (Img. 2.2.4).