Switch Functions in Coachmen Apex

[MontanaJon]

I just bought my Coachman Apex 276 BHSS and am really enjoying camping in it with my family of 5.

However, I can’t figure out what the bottom switch is for (pic attached). It is the bottom switch right inside the front door. The two similar switches above it control lights, so I would assume the bottom one would as well, but after trying all the lights, I’m not finding any connected to that switch.

Any ideas?

[IvoryHemi]

Possible it turns on some outside lights ?