I'm not doing a youtube on this because I don't feel I know enough about this.
Here's the new way of doing this, which seems simpler, but about the same results, I'm guessing.
Old Method:
Use an image on multiple walls, or custom lights. Then turn them on/off in stages like layers.
New method:
Using a ramp with an image and change the image with the script. Let me explain.
P1 discovered you can use Rampname.Image="image" to change the image the ramp is showing during the game. Instead of using multiple walls, you can use 1 wall, and change the image during play.
