I have just released a little backdating kit for the Stevens Pass Route DLC.
What this does is add depots, station signs, train order signals, platform clutter and station markers to the route. This was all done in the scenario editor only, so the installed route remains completely unchanged.
You need a bit of knowledge of the inner workings of the scenarios, crucially their folder structure, and of course you must know how to build and edit your own scenarios if you want to use this.
Detailed instructions are available in the manual.
You can download the backdating kit on my website.
Below are a few screenshots of how it looks like in-game.



Cheers
Michael


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Sorry to hear you had trouble downloading the file, I just checked my website management tools and there weren't any indications of downtimes or other issues. Well, they probably wouldn't tell me about those anyway. Whatever it was, I'm glad it's working again.