Set external camera momentum once and forever

Whenever I start new flight and I use the external camera then I set the momentum to 0. If I quit the sim and restart it and choose the same plane again then the external camera momentum is reset to 50. Can we have it stay at whatever it’s set at by the user, plaese? This problem doesn’t happen with the cockpit camera momentum when if I set it to 0 then it stays at 0 through restarts.