TL;DR
Let the train goes to special stop, when it got some damage and/or low fuelWhat ?
Additional option at train's scledule panel: where exactly the train should get some service (get repaired, filled up with fuel). No need to go to service stop every circle -> this is time waste.Why ?
Now we have no ability to give an order based on train's fuel amount. So I have to load fuel as long train loading cargo. Yes, cargo loading takes more time, often.But another big problem (as for me): we should build fuel loading all around popular pathes. I have stops out of main pathes. So I have to build "service trains" to deliver fuel... Stops becomes more compecated and not so pretty. I'm facing train fuel problem all the time I expand minning and so on.
Thanks for watching, regards, Andrew.
p.s.
Yes, I'm to lazy to build fuel loading at each stop...