For Anaconda Repository there are some useful command line commands you can use to quickly administer channel, accounts, and superuser settings.
To get a general rundown of available commands:
To manually reset a user's password, including the superuser:
anaconda-server-admin reset-password <user_name>
To change a user's name or otherwise move a channel to a new name:
anaconda-server-admin move-user <current_name> <new_name>
To escalate an account to superuser or remove the superuser privileges:
anaconda-server-admin set-superuser <username>
anaconda-server-admin unset-superuser <username>
As of Anaconda Repository 2.28, many of these options can also be done through the Repository UI. Log on as a superuser and select Admin. From the Admin panel, click Accounts and then select a username to perform these actions.