apart that this feature is used in real life
in what scenario it will actual be of any use in the game??
the only thing that could make any sense in the game as it is
it the ability to sell and buy wagons in the roders
This patch is completely unrelated to selling/buying wagons via orders, IMHO.
There is many ways to utilise dynamic train composition, of course in case in regular openttd game, which is fast and easy in term of money making, such micromanagement can be a waste of time, but in case of daylenght patch+hard economy setting,
such patch can be very useful, if it would allow to attach helper locomotives for uphill route, or switch steam/diesel to electric as shown on TV (YT
- it makes sense in case of infrastructure maintenance cost turned on.
Another uses: leave wagons for loading, pick other groups of wagons which are already loaded - no pay for locomotive waiting.
Or last but not least - possibility of cargo distribution - one train can supply many stations.
About late train: if I understand correctly, locomotive can pick any waiting train, so it will not stuck forever in case of train desynchronisation.
My experimental openTTD server: 126.96.36.199:3979 non-standard client, now testing: JGRPP http://tiny.pl/ggnch
Projects: Reproducible Map Generation patch
, NewGRFs: Manpower industries, PolTrams, Polroad, 600mm narrow gauge, preindustrial houses, wired, ECS industry extension.