The area on the right of the Design Center contains the Design Hierarchy Browser. This is where you view and analyze design results.
 
 
In the Design Hierarchy Browser window you can display a netlist hierarchy of your design, set constraints for every element in your design, cross-reference the design netlists to the generated schematics, and generate reports.
 
 
Now look closer at the details in the Design Hierarchy Browser. Notice we can execute many functions from within the window, such as setting clock constraints, reporting the clock frequency, setting Input/Output constraints, setting fanout and applying "don't touch" on a certain block.