(train refueling) reusable station groups

Please consider implementing reusable station groups. My suggestion:
- Each group of stations has 1 set of arrival/departure conditions, i.e. wait until full of product x + train limit of max y trains
- Groups can be added to a train line by searching from a list / entering the name of the station group.
What problem does this solve:
I have one train line for each product. I spent at least 30 min to add all train refueling stations to all train lines.
Each of my currently 35 train lines has an entry for all fuel stations, where for each of them I had to manually select all stations for refueling and input the arrival and departure conditions. This was very tedious.
For other station groups allowing standardized arrival/departure conditions at least would also save a lot of time. I often have 5+ stops all with the same conditions, i.e. load coal on all coal stations until full.