In order to modify a mailing list’s configuration, select Mailing list - Management --> Edit Mailing list.
Fig. 6.2.2 - Mailing list overview
All existing mailing lists you have access to are displayed. When logged in as “bcadmin”, you will see all lists present in the system.
Click the 
-button in the "Action"-column in order to take a look at and modify a mailing list's data. Finalize your changes by clicking the "save"-button. You will see a confirmation of changes made.