Select the top-level icon: 
to view a summary of all areas in the database in the content pane.
Select a second-level node to view a summary of all the areas of that type in the content pane:
Expand the Deployment Areas node and select the node for a stage in the Global Stage Lifecycle: 
to view a summary of the deployment areas associated with that stage.
Select an area icon:
Work area: 
Deployment area: 
Library Cache area: 