Hi hardik119955,

Thanks for reaching to us.

Please edit page, scroll down to Page Settings > Header and enable Open categories menu option https://prnt.sc/6kKQMZ-llq8C

You can read more here https://xtemos.com/docs-topic/options-for-pages/

You can create a dev site and import any template there, to see configurations of the demos you like, more detail is here: https://elementor.com/help/template-library/

This article will helps you to create it https://www.wpbeginner.com/wp-tutorials/how-to-create-staging-environment-for-a-wordpress-site/

Regards,