I am using the Zigbee coordinator/router mode, however I want to implement a mode where if 1 coordinator is unavailable another initiates the same network. So I want to use the same config coordinator/router for at least 2 nodes, and when they start up, the first one to come up becomes the coordinator and sets up the network and the second sees that the network is already setup and does not try to be the coordinator, but simply joins as a router, but if the first one fails the second one takes over initiatiation. How do I make this optional coordinator role programatically in my main line code, based on testing the availability of the network already?