Atomic Systems

Hello guys. I really enjoy driving the Hawthorne saddle tanks around but it doesnt half annoy me that they only have the train brake as a means of stopping. Other locomotives such as the DT terrier have hand brakes.

The IOW Invincible has a locomotive brake that does nothing.

Can anyone tell me how to give these locomotive handbrakes and working locomotive brakes?

I would really apprecate the help.

Cheers

Pete