4 Missing plugins that is required by the theme

Hello I purchased Highend – Ultimate Multi-Purpose WordPress Theme from mojo market. I can get the theme and the demo installed for the HB photography, but I can’t get my page to look and function like the interactive demo. Also when I look at the plugins it seems I’m missing quite a few that I assumed came with the theme package.

This is the message that displays on my word press plugins.
Highend theme requires the following plugin: Visual Composer – Live Drag & Drop Page Builder.
Please install this plugin.
Highend theme recommends the following plugins: Essential Grid, LayerSlider WP and Revolution Slider.