If you are looking for an overview of your supply chain structure in AX7 then you can run the operations infrastructure inquiry. It gives you a way to visualize the companies, sites, warehouse and locations structure below the warehouse. At each level you have some options to view related information. This can be handy to get a quick overview of your setup or help oriented someone new to how the system is setup.
Here is a quick overview.
AX7 Build 7.0.4230.16130