Apply a Widget to a Mesh with SceneCapture?

Hello guys!

I’m stuck with a little annoying problem.

I have this game where you walk around with this tablet and at any point you can look down and check a minimap that is constantly being displayed in the tablet’s screen.

The problem is I don’t know how to display it.
Right now I have a widget that takes control of the mini map and I was thinking maybe I could apply a scenecapture 2D material to the tablet, but that would imply I need a dummy camera just to render that widget.

Do you guys have any insight on how to do it?

Cheers, and thanks for your time!

(Images attached for context)

Closed, because of duplication: