Hi, thank you for purchasing our theme
The top image of demo home4 is created by BM slider.
Please go to WordPress Admin Panel: BM Slider > Add New. If you don’t see the option, please go to Appearance / Install Plugins to install BM Slider plugin(refer).
You need to pickup a category(or several categories), all the posts belong to this category would be shown in your slider. Each Post in this category should be set Featured image. If you click one slide in BM slider, the Post page(shown on this slide) will be linked. If you want to use external link, please use Link Post, input the external URL into the first “Link” box. You could also edit the Order, Auto play by default …
After you created the slider, you can set in page: https://www.dropbox.com/s/omzy40lxxp9risp/QQ20180224-214411%402x.jpg?dl=0
Is it difficult with Air?
Is not it suitable for creating a corporate site?
It is not difficult with normal site. I don’t know what’s your site requirement. Do you have UI design of your site?