Demo with multiple Monitors (UE4 on one, 2nd App on other) - How keep UE4 fully running?

I’m really sorry for the crosspost, but this is an urgent problem for me (


I need a solution on how to setup a UE4 demo with multiple monitors (or running applications) and keeping UE4 running "fully" without the window focus.

I have a setup:
Monitor 1: running a UE4 demo (cinematic)
Monitor 2: a simple control application that can change the scene of the UE4 demo (switch from scene 1 to scene 2)

The problem is this:
if the control application is being clicked on, it gets the focus. In this moment, UE4 looses focus and goes silent (sound is muted).
Is there a way to tell UE4 to just keep running, even if running in the background or without window focus?

Thanks! Any hint is greatly appreciated!

- Ben

Due to the large volume of questions and comments concerning the Engine, we did not have a chance to respond to your post at the time you submitted it. However, if you are still interested, the following documentation regarding the Slate UI Framework would be a good place to start:

Slate UI Framework

Particularly in the “Slate Overview,” where it discusses how to create a floating tab with Slate’s docking framework that you could use on the second monitor to control what’s playing on the first monitor without having to switch between applications.