Depending on your preference, you can enable or disable user accounts using either the website or the Admin Tool. Follow the steps for your preferred method below.
Enable or disable an account using the website
Click Configuration, then click Configuration again.
Select User & Group Management, then choose the relevant user.
Click either Enable User(s) or Disable User(s).
Click OK, then OK again to confirm.
Enable or disable an account using the Admin Tool
In the Admin Tool, click Security, then click User Accounts.
Enter the username.
From the User Filter list, select All Users.
Single-click the relevant user record.
Click either Enable selected user/s or Disable selected user/s.