This is something I don't get: why do so many people feel the urge to map each and every key to their hotas? In the example given (no offence, aceflier...) you need the flaps/gear/wheelbrake exactly twice during a sortie, namely after takeoff and before landing. It's easy to use the keyboard for that, also in the real planes that is a switch in your cockpit and not on your stick (airbrake is another thing, though). Hotas means to not have to get your hands off your controls in combat or in difficult flying situations (like re-trim), not to be able to fly without touching anything else but the stick...
Just my two cents...
Cheers
Dobby