Hi librandi,
I have created the /templates/ja_resort/acm/hero/tmpl/style-2.php file, you can find line 37 and insert your video here:
<a class="html5lightbox" data-group="myvideo-<?php echo $mod; ?>" href="https://www.yourjoomlasite.com/videos/<?php echo $helper->get('id-video') ?>" title="">
Change your URL here: https://www.yourjoomlasite.com/videos/
then go to the Backend > Site modules > select the Hero : style-2 and put your video name.
