Deactivating forward, neutral switch on Williams 2343

How do you deactivate fnr switch on a williams 2343 Santa Fe Engine?

That’s a good question. I’ve replaced all my E units with automatic, but that was a looong time ago and I don’t remember how I did it. But the good new is that if you post this same question over at the “Classic Toy Train” forum right next door, you will get an abundance of excellent answers.