Super users (exists since version 1.5.2) are one or more trusted user names with permission to do wiki-wide admin operations, like make full backups, software installation, and language installation via SystemPagesSetup (do not confuse with HelpOnAccessControlLists).

In their UserPreferences screen, they have a list of other users they can temporarily "become" in order to help or disable those users.

See HelpOnConfiguration to configure the super user, and some examples in HelpOnUserHandling and HelpOnPackageInstaller.

BradsWiki: HelpOnSuperUser (last modified 2006-06-30 07:21:45)