Microsoft Surface as controller for triple screen game

I’ve been trying to make a presentation in UE4 and I can’t figure out how to control a pawn on my presentation screen from a Windows 10 tablet.
The setup I was thinking is based on two Windows 10 systems, one is a pretty powerful one running my 4K presentation screen in First Person Perspective and the secondary one would be a Microsoft Surface tablet with a top-down view for navigation, several .
Everything will be connected to a private network for these two systems. Can anyone provide me some input on this?