The Driver Rules, 'ReverseTram' and 'Instant Load Loco' are helpful when running steam on modern routes. Reverse Tram will spin an engine and tender after uncoupling from the consist, requires a little room on either side.
Digging this one up I know, sorry, but wanted to add that the UMR series has always been my favorite going back to 2010. The new S2.0 in Plus has really made mass editing of this route a ton easier. I have been doing a significant update of the base UMR 2022 version replacing all textures that I can find with PBR equivalents as well as doing some general route beautification upgrades of buildings and other older meshes, and also upgrading to the new HD grid. I also made my version condensed and compact version based on the map provided in the UMR 2021 thread. I cut it down to the Lewmaple and Oakwood subdivisions to make it a little more compact and easier to navigate in the map view.
@neilsmith749 , if you haven't already been doing the same, I can bundle and send you what I've been working on for a UMR 2024/25 version in order to keep this excellent route going.