Take off only where landed

[amenofiiv]

Hello everyone!
I've read some time ago (I think when Dan was programming FsP) that he had in mind to make a feature that allows the pilot to take off only by the
airport in which the pilot is landed... I hope you understand my english! I don't know is this feature had been completed... I've searched somewhere
in the game and on the forum but I haven't found nothing.
If someone knows something about that i'll be very happy!
Thanks again!
Vittorio