Fuel warnings

[Black_Hawk]

Is there a way to change the 'trigger' for fuel quantity warnings?

For instance, in MiG-29 you can carry droptanks. When you drain all the fuel from them you can release them (and before that if you want to ;)) to improve your flight characteristics.

So if you drain your drop tank (if you had cca 4700l of fuel with tank and when it is drained you end up with something like 3500l) can the computer tell you "Fuel this and that" (you can always edit the .ogg ;)) so you know that the tank is empty? So you don't have to check your fuel quantity to see if your tanks are full or empty?