ATC question...

I have just been reading of a flight from Tucson to South Korea by a MATS Connie a few years ago. It flew at 10,000ft to avoid pressurization problems and communicated with ATC via high flying jets.Is there a plan in mind to enable ATC in FSX to understand that not all planes fly at FL30. I know you can opt to lower your assigned flight height, but if the map contained height information you would not have to embarrass yourself by having ATC reject a request to fly lower than they commanded! if you knew the safe height for the area you are flying over.Andy.I've told you a million times, don't exaggerate.