Groups can be included within other groups, forming a system of groups and subgroups.
A system of groups and subgroups can be created via group management operations and video camera management operations (see the section titled Managing Group and Video camera objects).
Group objects can be moved or copied into other Group objects or into the All groups object.
However, you cannot insert Group objects into their own subgroups.
Note: For example, in the scenario displayed below you cannot add the Group 4 object into the Group 1 or Group 2 objects.
If you nonetheless attempt to add a Group object into its own subgroup, you will receive an error message.