In Switch User section, user can switch account to other as per backup user.

Backup User:- Backup User are the users who can manage user/users account in their absence from work or simply can't access AIV for the set duration of time, Assigned Backup User can access user/users account for a set time allowing an organization to operate smoothly in the user/users absence.  The User can easily Enable or Disable Backup User also can specify future dates.