Operating your model trains has never been more fun.
With the locomotive sitting idle on the track, engage the Notch Up function. The enginge sound will begin to speed up. When you reach the desired Notch, disengage the function.
Now drive your your as you normally would using the speed control knob or buttons on your throttle.
You can notch the engine up or down as needed to supply more power to the traction motors or to conserve fuel based on track conditions and grade, tonnage, and speed. Now you are truely the locomotive engineer.
You can also engage the Dynamic Brake function when you are working on steep grades. The DB will activate when you reduce speed and stay activated until you disengage the function or speed up.