Hi Emilios,
By default the scenery already has a lot of parking codes included, but a few have changed over time causing strange behaviour. Most important: Norwegian (NAX), is now NOZ, NSZ and NAN... But also Alitalia (AZA) is now ITA Airways (ITY).
Would be great if you would find some time to update the codes (just like in Athens and Boston for example)...
Thanks!