LDAPAdmin

Hi,

i'm using an address book with mailing list facilities.

ex:
a mailinglist is basically an user (cn, sn, mail)

then in each member of this group, i just add an attribute mailing

mailing : cn=ALL

toto :
cn=toto
mailing=ALL

1. how can i create a template so that each time i add an user/contact inside a mailinglist, or remove the user, it automatically update the mailing attribute
2. how to list in the mailing form , all members
i use the mailgrid type but i'm stuck there

Thanks

Said