Airbus Extended to program non standard airports: How To?

[AFTRS 2]

Moin,

currently I am downloading Airbus Extended V 1.16. For decades I have been a "Boeing Man". Now I want to ride the Airbus.

What I am interested in: Navdata Pro and Navigraph do not serve the airports I am using in Africa. Most of those are today fictional,

but they did exist in the past.

For the Boeing birds I am able to manually tune the input/output files from flight planing software for FMC purposes.

Is there any difference for the Airbus? I think there should be at least some issues with the formats ???

Any hints to any documentation/forwarding explanations are welcome.

Thanks

AFTRS

Christian