[Admin]

If you're already using v2.2.0, you can also do this.
Add this:

  if ($userinfo[usergroupid]==6) {
    $userinfo[activity] = 'admin';
  }

right after this:

  default:
    $userinfo[activity] = 'unknown';
  }

And then add this:

    case 'admin':
      $userinfo[where] = "This is the text that will appear for all admins!";
      break;

right before this:

    default:
      // Let's show the admin the location but put something false up for everyone else..

CODE YOU MUST ADD:
In online.php, add this:

        $userinfo[$key][usergroupid] = $user[usergroupid];

right after this:

        $userinfo[$key][invisible] = $user[invisible];