Press F5 to run the project, click the OK button, and you will see the outline in action. If you click on one of the nodes, it will expand or collapse to show or hide the data under it. You may also SHIFT-click on a node to expand the entire outline to the node's level, or SHIFT-CTRL-click on a node to collapse the entire outline to that level. For example, if you SHIFT-click on a file name, you will see all file names and all sections, but no token data. If you SHIFT-CTRL-click on a file name, you will see all file names, and nothing else.