This theme is integrated well with Visual Composer page builder plugin to create content with Drag and Drop interface.
You can Check plugin's main website for more information https://vc.wpbakery.com/ about the plugin and videos etc.
This plugin does have learning curve of around 1-2 hours. But once you get used to of it, its addictive. :)
Here is quick start guide...
- First create a new page. Then you will see following screen.
Note: If you need, Visual composer documentation can also be found in Main-themeforest-download\Documentation\other-documentation