How to make Mixed Reality video?

Hi, since JUN there is no news for ue4 doing Mixed Reality videos. For all this time waiting and hoping to see the promise made by Epic come true. Today I saw a Mixed Reality videos for “Everest VR” which is a UE4 game. But a google didn’t helped me to figure out how they make it. If anyone knows please help me. And I really want to know what had happened that Epic stopped talking about MR videos.
Here is the link for the video

I am looking into this too! Let me know if you find anything! I’ll do the same, thanks.

Create a scenecapture2d component and attach it to a third controller, when the end user plugs in a third controller, he will be able to move it around, also the user needs to attach a camera to the contoller, to record the reality too.