Some further thought on run around operations. I guess it would only be possible if the remaining consist remains persistent. From what I’ve seen, consists do seem to be persistent however I’m not absolutely sure if a consist without a loco would be persistent. Also, we’d need to figure out if locos can actually detach from the consist and then re-attach to it.
If the above is possible, then I can see having vast arrays of sidings with rolling stock sitting in it… could end up being quite expensive having all that sitting around doing nothing though, very much like a real railway 😉
Personally I think it’s a fascinating idea and worthy of some experimentation when we get some further information on what we can legally do with modding. There might be some restrictions on what we can actually mod.