Help screen icon User Manager
From Joomla! Documentation
- User Manager. The User Manager does just what you might guess by it's title. It manages users. You can create new users, delete existing ones, change passwords, change language and time preferences, and even change which WYSIWYG editor the user has access too. Lastly, but perhaps most importantly, you can change the user's user group, giving the user different access levels and different abilities in your site.