you can click the blocks (rails) and press the down key when you want to place it orange=start what it does/how to use it: It is where you come from/ place it above where you want the roller coaster to start. yellow=end what it does/how to use it: If the roller coster touches it, it is finished and you can edit it until you're board. red=down hill slope green=fast travel blue=up slope
Look inside by clicking see inside and go to backdrops to see future updates!