Actually this is really good. But I miss one thing.
I made a black board and made a arrow button in order to move screen cursor up on the monitor. When I press arrow button and keep pressed, I want the arrow button pressed repeatedly, so that the cursor would move up automatically, while just holding the arrow button pressed. However, I couldn't find how to make it. When I press arrow button and hold pressed, it just moves once and keep the same position forever.