I prefer American steam engines but Csx33 told me to do a heritage fleet sim. Use A and D or Left and Right arrow keys to move. You can use the Up and Down arrow keys to use switches. Coupling is automatic but in order to decouple press Space. Hold E for the Horn.
In order to empty the hoppers line it up and put it on the yellow area at the factory then uncouple and wait 5 seconds. In order to empty the hoppers line it up and put it under the loader at the factory then uncouple and wait 5 seconds. Switch engines by going on the turn table and pressing F.