This is a scrolling test, where you use your mouse scroll wheel to change the variable I created called "Scroll line". In case you are curious on how I made this project, you can detect if you are scrolling with these Scratch hat blocks - * When up arrow pressed * When down arrow pressed These blocks check if you are scrolling your mouse wheel. This means that you can also press the up and down arrow keys. In case you don't believe me, click "see inside" to see how I did it. You will realize that it is exactly how I explained it. Oh, by the way you MUST use the hat blocks. If you use the sensing blocks, it does not work the same way :( Needless to say, it was nice of Scratch team to allow scrolling up and down with the scroll wheel
