Increase /Decrease keys for radiator - Request for 4.11.1 or 4.12

[Jumoschwanz]

Any bell or whistle that adds to realism is always welcome and applauded.

I never use intermediate radiator settings in fighters though. I am either cruising along with the radiator closed trying to save fuel while on patrol to or from a target or the front, or I have it wide open and am fighting or climbing to the altitude I want to cruise at, so the lack of radiator control never was an issue for me.

Didn't some famous fighter pilot talk about how his missions were long hours of tedium interrupted by second of terror and adrenaline? It is the same for my engine....