As Mixed Freight said, it`s pretty straight forward. I've installed DPDT switching on my set up and haven`t had any issues. Just have to be mindful of what is being run at a given time.
If you use straight DCC you will eliminate that entire control panel, with the possible exception of the twin-coil machine switches. And that can also be dispensed with using DCC servo controlled switch machines. This is the 21st Century.
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