Hi everybody,I guess this question would be for Ryan given that he seems to be one of the main developers. I'm building a home cockpit for the 737ng: right now it based on the default 737 from Microsoft. Now even if it's based on the the default aircraft i tried some add-ons from other companies and I saw the various add-ons had different degrees of compatibility with default systems. To explain what I mean some examples: an A321 (hadn't decided yet to build a 737 dedicated cockpit) had the lighting system fully compatible with default FSX commands while another one could just turn all the lights on and off by pressing L key not responding to the single lights keys (or switches or FSUIPC offsets and so on). The first airplane, even if pretty compatible, had it's own FMC/Autopilot system so it wouldn't respond for FSX autopilots command. Now since I saw FSX has some variables/system which are not shown to the public (Battery voltage, APU EGT and so on) I'd like to know what (not a list of course, just some sort of informations would be great) FSX variables will be used by the NGX if any and what systems are totally independent and designed by PMDG. To clarify: if I press the battery switch on the keyboard (or set it's default FSX offset through FSUIPC) will it turn on the NGX battery or it's a custom system built from scratch with its own internal variables?As a note:I know the NGX is not mainly intended for cockpit builders, but I hope to use it both on my test computer and my cockpit so I just wanted to ask before I started coding (with SIOC) for the default 737(-800 i guess??) and finding "two days" (no reference to the release date here! just a figure of speech) later I could have used such a beautiful piece of software.Tom