LOU wrote on Feb 28^th, 2012 at 2:58am:

All U.S. airlines use pounds. As for the change in the ADI... in the real plane it is just a quick software command by the tech staff. In FSX who knows???  ;) Having flown both types of F/D's, the yellow bird is much better. Lou

Hmmm...maybe Mark or someone else knows. Maybe it's a complex process who knows. I wouldn't think so because some addons you can change it though their ACE equivalent. Others you can change on the fly.  :-?