Arman Jangmiri provided all the files you need to start experimenting.
Have you ever needed a virtual mechanical keyboard that can copy everything you do with a real one? Then Arman Jangmiri has you covered. He shared a nice Unreal Engine 5 project that allows you to control in-game keys by pressing the corresponding ones on your keyboard.
The interactive setup was made with Blueprints and is ready for you to experiment with it and customize it to your needs, whatever they are.
Jangmiri can also impress you with his other immersive creations: for example, this setup that controls lighting in an Unreal Engine environment when you flicker a real-life light switch.
And if you would like to learn how to create similar projects in Unreal Engine, you might find these 80 Level Digests useful: