The cover just snaps on. Carefully pry it off; I believe there will be two screws that fasten the switch base to the wall panel. The switches just snap in and out of the base. You could move the switches, or move the wires that go to the switches; the wires connect with spade terminals, which should be easy to change around.
There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.
2011 Jayco 28.5RLS; 2008 Chevy Duramax; Pullrite Superglide Hitch