Didn't have them, but they could come in handy. When I feel ready to work on a locomotive again. Currently I've ran out of inspiration about trying to get it into the game. Also, feel like I should finish and get my buildings out to the community, like I've been promising for months.
If we work at it we can bring back the 30's and the 60's to Railworks with custom buildings, cars and routes to simulate the era.
Building up the past.
Being a apprentice architect, I learn a ton about building construction and use that knowledge to build my models from as a side hobby.