I may be missing something here, but if you want a train to wait instead of skipping a stop, what's wrong with just not turning off the stop?

For example: There are 5 stations. The extraction of resources 1, 2, 3. refueling the locomotive. warehouse. The warehouse is full. If it does not turn ...

TL;DR
Add "ignore non-working station"switch to train.

What ?
Add "ignore non-working station"switch to train. This will make it possible to choose the reaction of the train to non-active stations. The train will wait for the next station to work or not to wait and move to the next active ...