We are working on implementing a function for theme demo importing but until we finish it,
the only way is to manually download XML demo file and import it to your website.
Since the theme version 1.4.6 we no longer offer the WP Bakery Builder with which we created a demo web content, so in order to create your website, you will also need to download the WP page builder plugin from the following address:
WP Bakery Page builder
After you downloaded, installed and activated the WP Bakery page builder,
import demo content (XML file ) from Tools -> Import.
Home page Slider
Import the downloaded file into your Layer slider plugin sliders.
then Insert the Layer slider into your Frontpage.
Please check this Video Guide.
If you do not know how to import demo data, you can give us your website URL & admin user/pass in private reply and we will import the demo content for you.