The Root Asset Group is the global asset group that contains all other asset groups created in the Platform. Platform administrators can change the name of this group by selecting the name of the group in the View and manage asset groups page. The View or edit properties for Root Asset Group page appears, where you can change the name of the Root Asset Group and add a description. However, the Root Asset Group cannot be deleted.
The Root Asset Group and the Default Model Group are unique in the Platform in that they can contain multiple asset groups. No other asset group can contain more than one asset group.
If you are using Delegated Administration, then keep in mind that the "root" asset group that you select for a Delegated Admin Unit is typically a child of this global Root Asset Group for the Platform.