Where is the site administrators password set in the mailman config?

"You must have the proper authorization to create new mailing lists.
Each site should have a list creator's password, which you can enter
in the field at the bottom. Note that the site administrator's
password can also be used for authentication. "

-- Heisenberg's only uncertainty was what pub to vomit in next and Jung fancied Freud's mother too. -- Jared Earle