Hi xaviersuchodolski,

Please allow me to explain in better:

1. With Full-height option, you need to put width as well https://ibb.co/h1WTtPZs You can create a dev site and import any template there to see the menu configurations.

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/

2. You can read more here https://wpml.org/documentation/related-projects/mailchimp-for-wordpress-multilingual/ https://www.mc4wp.com/blog/multilingual-forms-with-wpml/

3. I’ve passed this topic to one of our developers, and I will let you know once get an answer.

Regards,