2010 Sunset Creek TT - Toggle switch under bedside table

I would like to ask you if you are aware of a toggle switch under the bedside table on the 2010 Sunset Creek Travel Trailer by Sunnybrook. If you are aware of such a switch, what is the switch used for?
There is nothing in the owner's manual to describe the switch and the salesman did not know.
Thank you,
West Beachhouse