Thanks for the quick replys so far, i have a basic understanding of electronics, i did a college course a while back and a year at uni, my Dad also works on the layout, and as he's getting on a bit the idea of trying to remember 30+ different point motor numbers would be a little daunting i think, thats why I would prefer to have a small diagram of the layout on the controller, and each point motor have 2 push buttons to send the motor one way or the other.