VMS Help DCE_SECURITY, Admin Intro, rgy_edit, miscellaneous_commands, domain  *Conan The Librarian (sorry for the slow response - running on an old VAX)

   do[main] [p | g | o | a]

   Changes or displays the type of registry information being viewed or
   edited.

   You can specify p for principals, g for groups, o for organizations,
   or a for accounts. If you supply no argument, rgy_edit displays the
   current domain.