Following useful advice from RMWebbers and a blinding flash which told me what I should have been seeing all along. Any comments will be VERY welcome.       I've numbered levers from the up direction - is this right?   1 - Home 2 - Loop point and trap from loop 3 - FPL 4 - Dummy for loop 5 - Dummy for goods shed 6 - Goods yard and trap 7 - FPL 8 - Release crossover 9 - Dummy for engine release 10 - Starter 11 - Dummy from loop to main 12 - Dummy from goods yard 13 - Loco Shed