Grouper Users - Open Discussion List

[mohan shamachar <>]

Let's say we have a subject,  is a member of a group, with admin rights in
that group.

Let's say this subject, logs in and wants to add another member into the
group.
when this user looks-up the subjects,  is there a way to have a subset of
subjects that only this user (group-member) can see?

Example:

There are these subjects loaded into the db subject table:  
Mickey, Minnie, Snoopy, Charlie

Mickey logs in and wants to add Minnie into DisneyGroup.

Charlie logs in and wants to add snoopy into PeanutsGroup

Is there a way to make sure that Mickey can only look-up/search/list Minnie
and not see charlie or snoopy?  and similarly,  make sure that Charlie can
only look-up/search/list snoopy and not see Mickey and Minnie in the subjects?

Trying to do this dynamically, where all subjects, groups, members are created
dynamically, without any prior configuration.

Thanks,
mohan