Thank you to those who responded in regards to my Slide problem. I have found the covert CB I was looking for, by mistake. The Slide CB is located in the Battery compartment directly below the master Battery CB (Red in colour). The Slide CB is a piece of Black material directly below the Master CB; it does not look like your typical CB and this is what threw me. I played with this black piece, which was sticking out from the bottom of the Master CB. I pushed it back in, heard a click, and the Slide now works.
I am attaching photos of the location to aid others who may run into a similar problem. Good Camping to all.