I personally would just assign a variable a random number for the sprite number and the x coordinate.

:::Note that this is pseudo code:::

Basically tempx = random(0 - window width) that can be called using create object at tempx and using the y coordinates that you wish to use.

Generate a different variable for the sprite number, like spriteframe. Now you would want to create a random number from the total number of sprites available (I am assuming that this is the same object with different sprite frames) and add 1 to the total.

spriteframe = (random(3)+1)

See example here:

http://www.mediafire.com/?cjcel43k8jwfnj4

It just takes too long for my taste.

Perhaps a simple key press could be used to go to next layout or program it for "first run" viewing only.

Either way this is tight!

So far I am extremely impressed with the creativity of this community and the capabilities of construct.

I've always closed the current instance of construct and open a new one each time. This is just habit from my MMF days.