Are you learning the basics of script writing yet?
It's not very difficult to "fly it in sky" but when you say it's not divided we wonder if you want it to animate? It must not be animated either then? If it was divided (rotors) then that could be considered added and scripted.
Anyhow, the very most simple way is to add a very basic movement script is to use CollisionOff(e) along with a MoveForward(e, v) and probably that comes after a SetRotation(e,x,y,z) This is a good time to learn the very simple format of starting your own script from scratch;
In the main block you will have something like
CollisionOff(e) -- unlock entity movement
SetRotation(e,x,y,z) -- mostly only need to modify 'Y'
MoveForward(e, v) -- any value between ~50-500 should do it!
Sadly there's not a vertical component to MoveForward, but there is a MoveUp(e, v) LOL, so it's divided into two calls. Then there is the SetHoverFactor(e,v) which I've never tried before-- maybe I'll go see what it does??
Otherwise to properly move any object, you have to use a little more complex functions and actually it's terrific that they have been added to GG API
(x=NewXValue(current,angle,distance) -- projects a new x position from the specified angle and distance
It just might take half a book to go into depth on that. Hey, maybe you can figure it out after you've practiced and gotten to know the script format and parameters we've discussed so far. Check back with us if you get it moving.