bool bReceiveHardwareInput
Register with the viewport for hardware input from the true mouse and keyboard. These widgets will more or less react like regular 2D widgets in the viewport, e.g. they can and will steal focus from the viewport.
WARNING: If you are making a VR game, definitely do not change this to true. This option should ONLY be used if you're making what would otherwise be a normal menu for a game, just in 3D. If you also need the game to remain responsive and for the player to be able to interact with UI and move around the world (such as a keypad on a door), use the WidgetInteractionComponent instead.