Thanks for using our theme.
Elementor plugin has 2 versions: free and Pro. Elementor plugin author does not offer developer license for the Pro version and does not allow to built-in Pro version of the plugin to themes. So, you can use free version – https://xstore.helpscoutdocs.com/article/36-included-plugins of the Elementor but in case you want to get the Pro version you need to buy an individual license.
All our demos are based on the free Elementor version, so the key is not required, because we add our own elements for the Elementor builder that are enough to create site content.
Just set these settings – https://prnt.sc/wgtuxd
