This can be reached by either using the F5 function key, or by clicking on the corresponding button in the main toolbar. It displays all of the elements and objects contained within a report. Contextual help is also available for the various entries in the tree list hieararchy, simply by pressing the F1 function key after having selected an entry.
The complete list of hierarchical elements contained within a report can be displayed by clicking on the small "plus sign" or arrow that appears in front of an entry. If there is no such sign or arrow, then that element has no daughter elements.