JSF tool window
The JSF tool window provides a categorized hierarchical view of your JSF resources.
At the top of the hierarchy are your modules. One level below are categories.
The categories correspond to JSF element types (managed beans, converters, components, etc.).
You can show or hide the categories. You can also open the elements shown in the tool window in the editor.
Showing and hiding categories
To show or hide a category, click 
on the title bar, and then click the necessary Show option.
The Show from libraries option is for showing the library elements referenced in your code.
Opening elements in the editor
You can open the elements shown in the JSF tool window in the editor. To do that, select the element of interest and press F4.
To open the elements which are the "leaves" of the tree (that is, the ones at the bottom of the hierarchy), you can also use a double-click.