steps on making the race car movie

First we put a new layer and named it signal,then turn it into a button afterwards we clicked  on the signal then when to window and selected actions. We click on up and change it to red
.. Then we when to over  and we change it to gray. Afterward we when to down and we change it to green. Finally we when to hit and we change it to red. Then we put another  layer and named it stop movie.We when to window and inserted actions. We put stop in that layer and put reset in the stage.