owners and groups

[Geoff Hibble <ghibble@LastFoot.com>]

If I have an entry where:

    dn: cn=Managers, ou=Groups, dc=lastfoot,dc=com
    owner: uid=ghibble,ou=People,dc=lastfoot,dc=com
    . . .

Is there a way to set this entry so it can only be modified by "owner"?

-----

Similarly, if have a group:

    dn: cn=Managers, ou=Groups, dc=lastfoot, dc=com
    . . .
    member: uid=ghibble,ou=People,dc=lastfoot,dc=com
    member: uid=rhibble,ou=People,dc=lastfoot,dc=com

Is there a way to allow any "member" in this group write permissions on
the entire:

    dc=lastfoot,dc=com

???

Thanks
--Geoff