After Installing and activating the theme you will see the following message at the top of the admin dashboard page. This theme recommends few following plugins. Click the begin installing plugins link which will redirect to Install Required Plugins page. To install them just check all of them and from the drop down select install once.
Even so, it’s not mandatory to install these plugins as they won’t be affecting the overall functionality of the site.
Page Builder Sandwich: Page Builder Sandwich is quite possibly the last page builder you’ll ever need. With its front-end drag and drop capabilities, Page Builder Sandwich allows you to create and design your site the way your visitors see it. Get access to numerous features such as short code mapping, hassle-free and pop up-less editing, and more. With us, you’re sure to have a page building experience like no other.