1. Go to the Blueprint folder into the folder UI, and in there in the folder called InGame
  2. Create a blueprint class that is based on BaseSceneBackgroundDisplayWidget and call it W_SceneBackgroundDisplayWidget.
    1. Open the widget
    2. Design the widget however you like
      • Add a image block to the widget named SceneBackgroundImage.
      • Add a image block to the widget named SceneBackgroundImageForTransition.
  3. Open the blueprint BP_InGameHud.
    1. Select the component Dialog Image Controller
    2. In the settings of the component set the Scene Background Display Widget Class to W_SceneBackgroundDisplayWidget

Everytime a scene background is displayed, the above created widget will be used to display the scene background. If you intend to always display something additional with a scene background, this can be used to set this up as well.

Next up is setting up the player interaction, so that a player can navigate through the story with keyboard/gamepad input.