Make custom event table template only display one category

gistfile1.txt

// In plugins/espresso-custom-templates/templates/events-table/index.php on line 20, change it to:
<pre><p class="category-filter" style="display:none"><label><?php echo __('Filter by category ', 'event_espresso'); ?></label></pre>
// and at line 91 insert the code:
if ( !empty( $event->category_id ) ) {
	$array_cat=explode(",",$event->category_id);
	if (array_search(1,$array_cat)===FALSE) continue;
	$cat=array_map(function($val) { return "cat-" . trim($val); }, $array_cat);
	$cat_class = implode(" ", $cat);
} else {
	continue;
}