[otrs] freetext-fields for queues?

Dear OTRS users, in our OTRS we just do some "statistics" (open, new, pending, ecalating, ... tickets) as a cron-job that sends an e-mail every night to configurated "supervisors". Now I wanna write that "supervisors" - which is a normal agent - for every queue into the database (to not use a textfile for the association). Can someone explain me how I can create such a freetext field for the queues? - First I tried to use the "description"-field but now we need that for real description... :( Thanks a lot and best regards! Kai Sommer