To revoke a role from a user:
This opens the user account table on the Accounts tab.
This opens the user account details window.
This opens the user account editing window.
The role is revoked for the user. The user can no longer manipulate application settings that were accessible in accordance with permissions of this role.
Changes of the set of permissions take effect for users that have the role assigned 30 seconds after the changes are saved or after the next authorization in the web interface.