Meta Slider - Flex Slider Loop Once (Stop on First)

/**
 * INSTALLATION: this code should be pasted into your theme's functions.php file.
 *
 * Use this filter to stop Flex Slider from looping back to the start of the slideshow (ending on the first slide, after a complete rotation)
 */
function metaslider_loop_once_stop_on_first($options, $slider_id, $settings) {
    $options['after'][] = "if (slider.currentSlide == 0) { slider.pause(); }" ;
    return $options;
}
add_filter('metaslider_flex_slider_parameters', 'metaslider_loop_once_stop_on_first', 10, 3);