[Mailman-Users] Umbrella lists within umbrella lists?

[Allan Trick]

I've got about 20 lists contained within a smaller number of umbrella 
lists which enables our users to message people on multiple lists by 
addressing a more compact single address.  I have a new request to 
create an intermediate list now.  This would require an umbrella 
address like we have now, but then it contains two OTHER umbrella 
lists, which then go to actual lists.

Does Mailman allow an umbrella list within an umbrella list?

Thx,

Allan