Use this tab to view and also define site cluster structures. It is not possible to create new sites via this tab. You may only use existing sites to create structures. When you delete a site from a structure it will not be deleted completely from the system. It will simply be removed from the current structure. You can drag and drop nodes, along with their sub nodes, to move them within a structure.
For the description of each tab in the window, follow the appropriate link: Node Information, Connected Sites.
Basic Data, Assortments and Site Clusters