tmda-cgi - create/edit extra lists?

Hello list,

One of my customers today was inquiring about using multiple whitelists 
via tmda-cgi for finer-grained control over his mail.  This is (at least 
now) strictly for outgoing mail, in that the user wants to rewrite his 
envelope based on the recipient being a member of a certain list.  So 
nevermind the myriad issues that multiple whitelists might present for 
inbound mail processing!

My question is - are there any hooks I might use in tmda-cgi to allow 
the user to create or edit lists other than the default 4 (blacklist, 
confirmed, whitelist, revoked)?  I dug around in the docs, but I didn't 
come across anything (other than a general impression, which didn't help).

Thanks for any tips,
-- 
Dave Steinberg
http://www.geekisp.com/
http://www.steinbergcomputing.com/