... file, given that both lines are curving in opposite directions? It's on the left hand side of the track diagram. Hi Rich, That's the easy one. Starting from your posted file, click on the background template and then peg/align tools> make diamond-crossing at intersection menu item. In this particular case Templot finds the wrong intersection first. Click the try other intersection option. Then afterwards use F4 mouse action to extend the template into the gap. As you can see, Templot doesn't do everything: 2_010937_130000000.png You now need to shorten the original background template from under the diamond. And because the diamond is so short, there is quite a bit of timber shoving needed to tidy it up. For which ideally you would have a drawing for your chosen prototype. Short-angle diamonds vary a lot. But don't bother with timber shoving until you know you have your finalised track plan, otherwise it is wasted work if you make changes. Note that in your file you also need to reset geometry> centre-line options ...