The diagram tab displays a quick visual representation of the object's relationships. To add more detail to your graphics or to visualize an entire chain, you need to create a view. You can use the diagram as a basis and simply press the Copy to view button to create a new view. Use the Add new relationship button to add a new relationship.
Tip: You can easily jump from one object to another in the dynamic diagram tab. To open the diagram of a particular object in a diagram, right-click the object and click Open object.