Apply code snippets to elementor theme builder templates

Hello and nice to meet you,

So i have designed a single product page with elementor theme builder templates.

Then i came by to this tips and hacks https://wpsimplehacks.com/woocommerce-single-product-page-hacks/
where in the 1st video he explains how to add custom code snippet to add custom fields etc. in a product. Even though it works fine etc, it doesn’ work for the custom single product page that i have built with the elementor theme builder templates. How can i apply this to the custom single product page i have designed with theme builder?

Here you can also find a few images to help for your reference.

Images

Any help is appreciated. Thank you in advance!