Thank you, Bob! Yes, it is a rather tight space. I have to be careful I don't bump anything when I am moving anything around! 
I had a nice B&O switcher on the track just for a test run with temporary wiring, then set it aside. The next time I picked it up, I saw some scratch marks on the cab roof. I do not remember bumping it, but must have; the dog is too short to jump up at all and has bad knees just like Mum and me! 
I see this plan is now big enough that I need to buy the SCARM package to do anything. The small room plan was right on the edge. If I left any track sections unused on the plan, it would bark at me. That's okay, it is well worth it. Only good for one PC. I'll put it on the home desktop right by the door in the photograph above.
