Since I got my custom GWR steam locomotive working in the Editor I paused work on it and have just retuned to trying to resolve the Coupling and (Vacuum) Brake Pipe Control issues. I have managed to get the Couplings (Fowler 4F Chain Link) to work when coupling to wagons in a scenario. The chains work visually and functionally, including correct slack movements when accelerating or braking. However I can't get the Hoses to couple between vehicles. In Simugraph debugging mode they are connected but not visually. Does anyone know how to "animate" the hoses so they connect up. When I couple to two loose wagons (in simulation) the vacuum in the Loco brake pipe is slowly destroyed and I end up with the Brake pipe at atmospheric pressure throughout. At the moment I can't exhaust the brake pipe without losing all the steam from the boiler in a short time but I think this is because I haven't got the Ejector set up correctly in the Simugraph. (It may be working in reverse and letting air in.) Interestingly, I haven't yet managed to get a formation (loco plus carriage) to spawn in an AI scenario or to manually couple to a passenger coach even though I can couple to Vacuum braked wagons OK. If anyone has any knowledge of couplings or suggestions they would be appreciated.