For the sake of keeping things clean:
The code I posted was mentioned to me I made a mistake with ` and ' being used incorrectly.
This is the code which - to me - clearly shows me what is going on and the trick with the DPDT switches and how they allow multiple (unlimited) numbers of them to control a light.
Yes: Outside the scope of NR. Just it is my go to program/language for testing things just now.
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node.status({fill: \"red\", text: \"flip\"});\n }\n return;\n}\n\nif (y == 1)\n{\n //\n if (x == '1,0')\n {\n x = '0,1'\n msg.payload = x;\n return msg;\n }\n //\n if (x == '0,1')\n {\n x = '1,0'\n msg.payload = x;\n return msg;\n }\n}\nreturn 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