Can't find switch for "driving/fog" lights

[kahoona]

We have a National Tropical coach from 2008 that we bought just over a year ago. I was replacing a headlamp pod recently and noticed the low mounted "running/driving/fog lights" and realized that I have never seen them come on. I did check to make sure the bulbs are good. I can't find any switch for them either. The manual is for a generic theoretical vehicle and was supposed to have a supplement for the individual models but I never saw one. There is a picture but no information about the switch and no dash control information either. Does anyone know where the switch might be? National is gone so I can't ask them. I'd appreciate any info. It would be nice to be able to use them.
I am sorry, I can't figure out how to add photos.

[kahoona]

BB_TX wrote:
If the headlight switch rotates to turn the headlights on/off, then it may also pull/push to turn the fog lights on/off.

That's it! I never would have thought to pull the knob out. Thanks!

[bgum]

Many headlights go to bright by pulling on the turn signal stalk. To turn on fog lights push the stalk toward the steering wheel column or pull it away from the column

[Old-Biscuit]

Main Headlight switch...does it push in?
Sometimes that is how the Fog/Driving lights are turned on/off

[BB_TX]

If the headlight switch rotates to turn the headlights on/off, then it may also pull/push to turn the fog lights on/off.