Okay, I've done some checking and I've figured out most of it:
Cable.FD4_FiddlersGreen"="21.348925 -71.051315
19.944760
21.349057 -71.051535
19.944760
7"
//// Airport Name//////// Lat 1 Lon 1
x1
Lat 2 Lon 2
x2
Altitude
//// Lat 1 & Lon 1 bottom left corner, Lat 2 & Lon 2 top right corner,
x1 & x2 unknown
(stock FD4 carriers use 24 or 25 on all, others us 15 - 25)
Does anybody know what the last two unknowns are? Thanks