How do I size the tracks and background to the same dimemsions?
Look at the bottom right corner of the background image - there is a small triangle grip. Point the mouse cursor over it and then click and drag to resize the background image. You will probably need to do this several times until reach the correct dimension. Verify it by laying a straight track from SCARM over the same track in the plan of the background image. It will be better if you can make some section with 2-3 straights and curves and then check the scale of the image with it.
Mixy
