posixgroup and groupofnames

[James Tran <james@nttmcl.com>]

i want to be able to make a group that is authorized to be admins to the 
ldap database but it seems i cant do it with posixgroups.

i saw that you can edit posixgroups to be groupofnames to enable this 
but i dont want to go back and edit a bunch of posixgroups that are 
already structured so i want to just add objectclass groupofnames to one 
group that's enabled as admins.

i heard that the rfc2307bis.schema can let me do this but i can't find 
the file anywhere.

Any help please?