For Unreal Engine 4 powered games, there's a universal way to add a free camera, add timestop, a hud toggle and re-create the in-game console (which is usually stripped out in released games): The Universal UE4 Unlocker, in short UUU. It comes with its own client exe, UuuClient....
with Universal Unreal Engine 4 Unlocker).After that, write r.HDR.Display.OutputDevice 3 (or r.HDR.Display.OutputDevice 4 for 2000+ nits) on it. This is because in UE4 DirectX 11 only supports scRGB HDR swapchains, while DirectX 12 only supports HDR10 swapchains, but UE4 wrongfully ...