Vars used by GPS

I finally compiled a list of the GPS vars (most of which are used in the XML for the FS9GPS) and their default units and whether or not you can get/set them.  Hopefully this will be a handy reference for those creating their own GPS.  I've also created a column for whether or not there is an example of how these vars are used in the GPS.  NOTE that those vars that are not used in the GPS may not work at all.  In fact, last week someone was inquiring about why they were having trouble figuring out how var "FlightPlanWaypointFrequency" worked and the unfortunate fact is that it doesn't - it essentially returns garbage!  Yes, the adage "everyone makes mistakes" applies here...

A lot remains to be said about these variables.  For example, how to use them, what they mean, what the possible values are for each enumeration... but Rome wasn't built in a day, now was it?  ; )  Stay tuned...