How can i use 2 cameras as syncronized in the same time?

Hi, im working on a project, but i cant do what i want.

What i want is exactly a game mechanic of Dishonored 2. You can watch the video from link.

This guy is exactly doing what i want. He is describing how to do it but he is using Unity, i couldn't understand because of im using Unreal Engine Blueprint.

Its just my best.

https://i.ibb.co/hm2JYLd/Ads-z.png

As understood, the sight in the mirror isn’t syncronized with our point of view. There is a link for more information.

I want to see syncronized view like Dishonored 2. How can i do that ?

This is my way of working.

My character is starting game on 1. Place. The place at down 5000 units from my character is actually copy of first place. I placed a camera 5000 units down and im seeing screen of there from upward. View is coming to up succesfully but like i said, it’s not syncronized with screen. Im waiting your opinions. Thanks.

(sorry for my bad english.)