Thank you, Bill, Dave, Greg!!!
Bill, I do have a few years under my belt. However, after carpal tunnel surgery in each hand twice, a broken right hand, and arthritis in my thumbs, I do a lot of fumbling these days! 
Dave, Yes, I can get under the layout when I pull out all the stuff I store underneath! I did all the wiring seated on my roll around stool from the operating area except for the two switches that still don't have pushbuttons. They are right behind the peninsula that has the control center. Yesterday, I pulled out the patchwork covered chest in the photograph and some boxes to the right of it to prewire the two switches that are on the lower level yard. I have a small creeper that is a bit hard to get back up from, but it gives me good access. Also, none of the plywood shelving under the other areas of the layout is fastened down. I can pull it out if I have to, but I made as many connections as possible near the aisle.
Greg, you can say that again!! 
