I kind of just ripped off The prodigy, except I just changed the decoration and removed unnecessary code. I also changed the slide limit to 50000 instead of 500. Seriously, go check out his creation though.
Just drag the blocks, press the arrows when done, press play, and watch your animation. If you want it to go faster or slower, just click the FPS button. Higher numbers make it go faster, and vice versa. Anyways, have fun!