Shortcuts can collaborate with other objects in a variety of ways. The Dependencies tab in the shortcut property sheet lists the objects that are dependent on the shortcut.
This can be very useful to avoid deleting a shortcut whose deletion could seriously modify the design of your model.
Open the shortcut property sheet, and click the Dependencies tab.
The Dependencies tab lists all the objects dependent on the shortcut in all the models open in the workspace.
You can double-click an entry in the list to display the object's property sheet, or click the Impact Analysis button to determine the impact of deleting the shortcut.