The Enable Free look in Vehicles Option in game overrides the mouse keybinds to fly the Helicopter.
The Free look in Vehicles should only be enabled only on land vehicles, sea vehicles except the underwater ones, and passenger seats for air Vehicles.
I have to turn the option off when I want to fly a heli with a mouse.
I like having Freelook always enabled in vehicles that only move on the X axis, but for Y and X axis vehicles (Heli's, Jets, Underwater vehicles) I like using my mouse to fly and do not want Freelook enabled.
Can the the settings be changed so we can customize this even more to each players own liking.