RepeaterGroup.addGroup Method
        
 Adds a group to the group.
 
         
        Parameters
        
            - group
            
 
            - 
                
Type: RepeaterGroup
The group to add. 
            - insertIndex
            
 
            - 
                
Type: Number (Integer)
(optional) An index in the groups array at which to insert the group. If not specified, the group will be added to the end.
Optional: True