Map light switch

On my 72 Scamp, the map light is under the lip of the dash at the far right. Really seems more like a courtesy light than a map light. The light comes on with the dome light when the switch is down; stays off when the switch is up. I've never known a way to turn it on independently of the dome light.
This is my exact experience as well on my car as well as another car. Thanks for confirming that this is the stock method for map light function.