Creating User Group Hierarchy
Ensure that the User Groups that you want to associate are
already created and active, and are of the same type. You can associate a
User Group with either a new User Group or an existing User Group.
Note:
You cannot associate a User Group to another User group if it has already been associated to another User Group, or is part of another User Group hierarchy.Follow this procedure to associate a User Group with another User Group.
The User Groups are now associated with each other.