It would be nice to be able to save some specific alternate airports for a given destination.
A bit like with airframes.
This would simplify the simulation of company alternates: my airline goes to airport X, simbrief suggests Airport Y as alternate, but my company also flies to another airport (Z) a bit farther than Y. Operationally it would make sense to keep Z as alternate for X.
Saving this in some kind of “airport profile” would be handy.