How to install theme premium plugins
Our themes come with premium plugins like Revolution Slider, WPBakery Visual Composer, and Ultimate Addons for Visual Composer
you can find them in the theme package, in a folder called premium_plugins
move this packages to your server in this path wp-content/themes/your-theme/theme/plugins/
and then you will be able to install them from Install Required Plugins section
or you can move them to your desktop and install them as any other plugin, by Plugins Section
so Plugins > Add New, then browse for plugin package and install it