// Disable Sideber on custom archive add_filter('avia_layout_filter', 'avia_change_post_layout', 10, 2); function avia_change_post_layout($layout, $post_id){ if(is_category('CATEGORY ID/NAME HERE')) { $layout['current'] = $layout["fullsize"]; $layout['current']['main'] = "fullsize"; } return $layout; }