more than 2 feeds

Is it possible to have more than 2 dashboard feeds?

could i add more than 2? by adding more code like so:

$widget_options['dashboard_tertiary']['link']         = 'http://3rdsite.com/';
$widget_options['dashboard_tertiary']['url'] = 'http://3rdsite.com/feed/';
$widget_options['dashboard_tertiary']['title'] = 'Latest 3rdsite Pages';
$widget_options['dashboard_tertiary']['items'] = 3;
$widget_options['dashboard_tertiary']['show_summary'] = true;
$widget_options['dashboard_tertiary']['show_author'] = true;
$widget_options['dashboard_tertiary']['show_date'] = true;

and

//delete cache for update the widget when we change values of options
if ( $current_widget_options['dashboard_tertiary']['link'] != $widget_options['dashboard_tertiary']['link'] ||
$current_widget_options['dashboard_tertiary']['url'] != $widget_options['dashboard_tertiary']['url'] ||
$current_widget_options['dashboard_tertiary']['items'] != $widget_options['dashboard_tertiary']['items'] ||
$current_widget_options['dashboard_tertiary']['show_summary'] != $widget_options['dashboard_tertiary']['show_summary'] ||
$current_widget_options['dashboard_tertiary']['show_author'] != $widget_options['dashboard_tertiary']['show_author'] ||
$current_widget_options['dashboard_tertiary']['show_date'] != $widget_options['dashboard_tertiary']['show_date'] )
{
$cache_key = 'dash_' . md5( 'dashboard_tertiary' );
delete_transient( $cache_key );

reason I am asking is i have 3 sites which i need to network together

site 1 needs to show feeds from all 3 sites within dashboard