HOW TO FLY HELICOPTER in BoE
(Keys ) W (Down), S(Up), A(Left), D(Right), Space (Take off), Space(Landing), E (D.C.M.=Direct Control Mode).

HOW TO TAKE OFF - First press E (or your direct control key), then press W or S and press space at the same time enabling you to take off,

HOW TO NAVIGATE - Use WASD to navigate the chopper up ,down left and right, you must have the direct control mode enabled to fly the chopper or just do what you would do with a normal unit to get to a place, it requires D.C.M. to take off and land,

HOW TO LAND - Enable D.C.M. and press space, this will make your helicopter land at its current position.
Coming soon a video tutorial on You Tube.