The documentation states that: “Visual Composer (34$ value), Ultimate Addons for Visual Composer (18$ value) and Slider Revolution (25$ value) are must have plugins as well”. I can find VC and Slider Revolution and have installed them. However “Ultimate Addons for Visual Composer” is nowhere to be found.
Visual Composer is pretty limited in its scope compared with WP Bakery which used to be the theme’s page builder plug-in. I am assuming that the Ultimate Addons for VC gives more functionality.