Hi DecoHome,
Thanks for reaching to us.
The new demo is using Custom Shop Page layout, which is part of WoodMart WooCommerce Builder, you can read more here https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
You can create a dev site and import any template there, then with the help of the import functionality of Elementor you can export and import templates, more detail is here: https://elementor.com/help/template-library/ or subscription forms.
Devsite – also called a Staging platform where you can test issues, enable/disable features/plugins thus such changes will affect the main site. The below article will help you to create it:
https://www.wpbeginner.com/wp-tutorials/how-to-create-staging-environment-for-a-wordpress-site/
Regards,
.
