How to hide the thumbnails of related videos after playing the video on slider?

To hide the thumbnails, please do the following:

1) Copy fudge-2/components/templates/shortcodes/efcb_conference.php to child theme fudge2-child/components/templates/shortcodes

2) Create the folder structure if this doesn’t exist.

3) Open fudge2-child/components/templates/shortcodes/efcb_conference.php

4) Around line number 124, you can find:

fitToBackground: true,

5) Please change this to:

fitToBackground: true,
rel:0

6) Save the file.