How to create multi level subgroups in organic groups? I Need to create multi level of subgroups in organic groups like 



like a tree. I don't know how to create using organic groups. Can anyone suggest.
Apparently, there is a module for this: Subgroups for Organic groups

According to the module description,


  This module enables a user with the proper permissions to build group
  hierarchies (or tree) by nesting groups under other groups. Simple or
  complex group hierarchies can be easily created.