The 101 sadly only has a few formations: 11 wagons, 7 wagons and only the loco. It would be nice if there are more formations like 5 wagons, 6 wagons... Spoiler BR 101 + 4 wagons (RSN Stations are short) BR 101 + 5 wagons BR 101 + 6 wagons BR 101 + 8 wagons BR 101 + 9 wagons BR 101 + 10 wagons Also nice would be a sandwich formation. The BR 185.2 also have some formations like that (Loco...Freight...Loco)