I have to use the Generic_Light parameter twice in my config file and I don't know how to distinguish between the two. I have unique and functioning data refs for two actions not implemented in your Configurator (Outboard Landing Lights L & R for FJS 727). I've assigned the parameters the two different custom data refs but one switch (mine) triggers both actions in the aircraft model.
I'm not sure what "zone" means in your plug in but I've tried using unique numbers in this field. Then my switched, left or right, only operates one function in the sim.