The Navigator window provides a compact view of the currently selected file and simplifies navigation between different parts of the file.
You can open the Navigator window by choosing Window > Navigator (Ctrl-7). By default, the Navigator window opens in the lower left corner of the IDE. To display a source file in the Navigator window, select the file in the Source Editor, the Projects window, the Files window, or the Favorites window. Once a file is displayed, you can use the Navigator window to focus on a specific nodes contained in the document. To do so, click on a given node in the Navigator window, and your cursor automatically relocates to the node's position in the document.