I did a few small projects on the layout during the last two or three days. I made our wye into a separate block and added a dpdt switch so either one of our two Z-4000 transformers can be used to control it. I also isolated the tail of the wye with a spst switch so that an engine can be left there.
I also made some new layout diagrams showing the locations of switches and blocks, and put them on the fascia boards around the layout.
And I added a couple more scenic details to the roundhouse area (a work in progress).