Provide a configurable table view
Many business focused tools provide a way to view elements within a table presentation. The uses would be to view lists of items, with customized columns that are populated based on a configured relationship you want to view. For example, the list would be Use Cases and a column could be to show any actor that has an association to the use case. A second column would be any activity that is related to the use case, and so on.
The second use would be as a matrix. If you want to view rows of configured elements vs columns of configured elements. There would exist a marker where the desired relationship exists.