Class Hierarchy Browser mode
The AppBrowser is in Class Hierarchy Browser mode when you select a .java file in the Navigation pane, right-click, and choose Class Hierarchy from the popup menu. A new tab, Hierarchy, is displayed at the bottom left of the AppBrowser.
This mode displays the inheritance tree for your file. You can then navigate to any file in the inheritance tree by selecting it in the Navigation pane.
See also:
Getting Started with JBuilder: AppBrowser modes