Regardless, this is done in eventing so that should not matter. Scripting would be really dumb to use. I'll try to help, too.
In theory... You could probably make a loop and make it continuously show the picture on the same number. Then you add a conditional branch that will break the loop if you press up, left, down, or right (depending on the three directions the sign is not. IE if the sign is above you, you can only press left, down, or right). Then after the loop is a command erasing the picture. This hasn't been tested so... Yeah.