From the object list, you can access the submenu in which the object types related to the selected object type are displayed using the Relships / Object Usage menu item. If you select one of the object types without any further specification, a list of all objects that are related to the selected object is displayed immediately. This list cannot be limited.
The submenu lists all used objects and, after selecting the Used by menu item, the using objects for the selected object type.
Instead of selecting the Relships / Object Usage menu item, you can click on any cell within the object list using the right mouse button. A drop-down menu is displayed with the same functions as provided under the Relships / Object Usage menu function.