I've been slowly working my way through wiring detectors and LED indicators in my panels, for the various hidden-track sections of the layout.
Tonight, I started working in earnest on wiring a number of 2-light dwarf signals (Oregon Rail Supply), which will be installed at the entrance to all the hidden track sections. These are a bit more work to wire than I expected - as you have to figure out where to physically locate the resistors for the LEDs (I opted for below the layout - meaning I had to wire the LEDs with a short length of wire, then the resistor(s), then more wire which would attach to the 'real' wiring below the layout somewhere).
Anyway - it's going smoothly now. I debated for a long time between normal block signals, and the much smaller dwarfs, because the RGS never had any signals (of course). I settled on the dwarfs because I don't want to 'model' block signalling, but just want to give my operators some indicator of whether they can proceed into the hidden blocks or not. So I kinda have block signals, and kinda don't, if that makes any sense.
Hopefully I'll post some photos once they're built & installed.