Hi there,
Thanks for writing in! That is a slider activated in the above masthead area. Those 4 columns are layer animated in a slide with rev slider.
You can follow a basic guide on how to setup the slider here:
https://community.theme.co/forums/topic/header-over-video/#post-612599
Regarding the columns, you can create images in an image editor and then animate them in the slider you make for the video background slider.
Let us know how that goes. Hope this helps – thanks!