Capturing Stereoscopic 360 Screenshots combined into a single image automatically.

In new to unreal. I’m trying to follow this tutorial from the hellbalde 360 video example.
I managed to get the screenshots for both the left and the right eye working. I managed to export them in a test animation for a environment i’m working on. I want to combine the 2 images like in the web page.
However I really don’t know where to paste any code or what some of the language is. I am a 2D artist & concept designer so i really don’t know how to get what i want and its very frustrating and sort of daunting.

I can open up SceneCapturer.cpp but after that i have no clue where to past #2 in the instruction past.

If anyone can help me that would be greatly appreciated.