... image an overall transparency so that anything underneath partly shows through. You can move images forwards and back to change which one is in front. To illustrate that, here is a transparent signal box. 2_031645_410000001.png The transparent background area around the steps is unchanged. You can see that the cattle dock is solid -- the grid line is obscured. Here it is on the workpad. The relative image transparencies are preserved, but now the whole thing is on the background behind the track, grid lines, and everything else: 2_031645_410000000.png regards, Martin. posted: 3 Oct 2010 23:51 from: Brian Nicholls Hi Martin, Thank you for your most explicit and detailed explanations. It is a pleasure dealing with someone who not only responds in good (excellent) time, but also takes great effort to explain things in the most detailed manner and, in a way that I, and perhaps all others, can understand. Martin Wynne wrote: It doesn't actually make any difference whether it's Z or Gauge 1 -- the image on the sketchboad ...