Nice, @KE4NYV ,
Two questions:
1: What is the amp rating on the switch?
I personally tested up to 2A without any problems. The traces were made as wide as I could comfortably fit on the board to handle at least a decent amount for a layout.
2: Could a second be used to switch between the layout and a programming track (both DCC of course)?
Absolutely! In fact, one customer already told me that is exactly what they bought it for. They told me they might just make a little label to go over the "DC" on the fascia panel that says "PROG".
Thanks for the questions!