Lurker........
I have gone through the whole ACTIVITY SIMULATOR WORLD files and there is no update or OR file for the x4900 series DMU cars.
I do not need the x4700 series red/cream units, I already have them. They are 2 car sets with no middle trailer, This is not the problem.
I have all the units set up to run from either end as is possible in Bin and OR, so I already know how to set this up. I made the rear unit a reversed shap with a reversed cab view so it will run at the rear of the set, but will be properly pointed when changed as the lead unit
Doug
Happiness is when the AI-trains appear where you want them to