configure dashboard widget order

Sorry, but I don't understand how to configure this widget.

I would like all users, including existing users, to see only 'dashboard_right_now' and 'dashboard_activity'

The file is installed with:
// change the order of the widgets here
$dashboard_widgets_order['normal']['core'][] = 'dashboard_right_now';
$dashboard_widgets_order['normal']['core'][] = 'dashboard_activity';
$dashboard_widgets_order['normal']['default'][] = 'dashboard_incoming_links';

$dashboard_widgets_order['side']['core'][] = 'dashboard_quick_press';
$dashboard_widgets_order['side']['default'][] = 'dashboard_primary';

$dashboard_widgets_order['column3']['high'][] = 'dashboard_secondary';

$dashboard_widgets_order['column4']['high'][] = 'dashboard_plugins';
// Change this if you update the widget order and want all users to have
// the new order instead of just new users.
// Note that this will overwrite the custom widget order users have
// configured.
$dashboard_widgets_order_hash = 'hereistheorderhashnotcopied';