2.1 Create new page

Click on the icon above the tree structure, which will expand a small menu below. (Img. 2.1.1)

Drag the Page icon down in the tree structure and drop it where you want it. It is possible to drop it between two pages or you can drop it on an existing page to make it a sub page.  After you drop it a field opens up and here you can insert the page title. Press "Enter" to save. To edit the title, simply double click the it. (Img. 2.1.2)