a) it is the config file within the afc bridge folder
b) the file itself is editable via notepad or notepad++, the only thing that needs to be done is to open the up the file, do a search for “Byte Index”: 3, “Bit Index”: 2
by then adding the above code (in my earlier posting), it cause the AFC Bridge to monitor the flight sim variable “A:PITOT Heat, bool” for either an on or off state (bool is short hand for “Boolean”). Since the goal is to turn on the pitot heat annunciator light when the switch is in the on position, this code is having the AFC Bridge monitor for when the switch is in the ON position (i.e. “ConditionValue”: “=1”)
Funny enough though, within a real 172, there is no annunciator light for “Pilot Heat”
I did end writing a more verbose explanation (base upon some finding within the xml files from last year) that if you wanted to assign an annunciator light, as long as you can find the variable to trigger it, you can customize the bridge file,Honeycomb Bravo LED Fix...(MS Store) - #17 by monkiesandtools)