How to divide the screen into sections for games and sections for UI?

The question I want fits perfectly with the title.
I want a way to divide the screen into a section for games and a section for UI.
Unreal Engine provides a split screen option for local multiplayer, but that’s not the way I want it.
Methods with scene capture are excluded from the method as we know they are heavy and do not capture lumens.
I would like to split the game into a section for the UI and a section for the game that renders the camera’s viewport.
As a single player.
The way I want it to be an editor-like screen.
Please help me.

I see, you can use shaders to achieve this. This will most likely suffice: Elias Wick | Transform

You could look at this:

I use post-process material to transform the viewport area:

I built a plugin to support this feature as i also needed to build an “Editor-like” type of application.
You can read a more detailed answer here:
Split viewport into areas of different contents

But in short this is the plugin: Enhanced UI

It does NOT use Scene Capture, or Split Screen, or Materials…
The system simply takes the 3D viewport and places it in a UMG Widget…

Fab link : https://www.fab.com/listings/b8777f94-8b76-4af9-a110-3c6329b31d06