Airlines selection for airport

Hi, JARDesign Group!

I see like users here asking for airline selection for airport.
And I'm the one of who really want to have feature in X-Life Deluxe.
It's really ridiculousness to see A320 from Australia and many other airlines in EGLL (London) but no any British Airways aircraft.
As I see, XLD logic randomly chooses some number of aircraft and places them into XLD airport.
What if you will add EGLL.air file where we will put all airlines flying from airport where Custom ATC Routes made for?
For example, 20 airlines maximum for every airport in the format Airline, Gates occupation (0-100%), Flights per Day.
Something like that:
BAW, 70, 48
AFL, 1, 4
...what means:
British Airways occupying 70% of EGLL airport gates and performing 48 flights a day (every 30 mins).
Aeroflot occupying 1% of EGLL airport gates and performing 4 flights a day (every 6 hours).
Or something similar - up to you...
And we will be happy to fill out every XLD airport with this data.

As you said on your main page:
REALISM, SIMPLIFICATION. HOW CLOSE TO THE REAL?
Well, it is! But not close enough... At least so far...