add_filter( 'wpex_ilightbox_settings', function( $settings ) {
$settings['controls']['slideshow'] = true;
$settings['slideshow']['startPaused'] = false;
$settings['slideshow']['pauseTime'] = intval( 4000 ); // 4 second rest between slides
return $settings;
} );
Snippets: Lightbox Auto Slideshow
All PHP snippets should be added via a child theme's functions.php file or via the Code Snippets Plugin (or alternative plugin)