In my Avada Demos in my WordPress admin, the Driving demo is not offered. How can I get that demo to appear so I can use it?
Please check your purchased theme documentation.
If you have still problem with the theme then The best way to get the support is Contact your purchased Theme Author. Contact Author and let them know because Item Author are best expert about their Item functionality.
Also you can check your theme Option hope you will find demo import option there.