As anyone who has tried writing scenarios knows, the process is not exactly simple or easy. And this situation is not helped one bit by a route that keeps shape-shifting, such as the Settle to Carlisle from RSC.
When I first looked at this route with the intention of writing a complicated freight shunting scenario, I noticed that not all of its signals appeared in the 2D map. Most of those located in the Carlisle Freight Yard appeared, as did some along the mainline tracks. When I opened my scenario for additional editing today and then gave it a test run, I discovered that no signals at all appear on the 2D map, either while editing or while running. This may seem like a minor irritation, but it is only one of the things that constantly and inconsistently change, without warning, of course, on this route.
So I feel obliged to warn other scenario writers that anything more complex than a long passenger run is likely to be extremely difficult to program on this route.
Regards,