The Widget Component itself is a 3D instance of a Widget Blueprint that you can interact with in your game world.
In the example below, we have added a Widget Component which will now allow us to specify a Widget Class Blueprint.
This example uses a Widget Blueprint to display a interactive menu that appears in the game world.
You can change the size of the WidgetComponent in the world by changing the Draw Size or using Draw at Desired Size.
Once you place the Actor that contains the WidgetComponent in your level, the Widget Class Blueprint is displayed in the world.
Here we have an interactive keypad that sits on a wall.