[Mailman-Users] nested lists?

[Duane Winner]

Hello,

I have created an announcment mailing list so I can send announcements 
to all of my clients member's emails  (several dozen).

I already have 12 unique mailing lists created for each organization of 
which these clients are members. These are discussion mailing lists.

Is there a way I can incorporate the existing discussion mailing list 
memberships into my new announce list, so that I don't have to replicate 
adding the members, and also so I don't have to remember in the future 
to add a new member to both their respective discussion list as well as 
the announcement list?


Thanks,
DW