This is a FNOF (Furniture Node On Furniture). You can place it in your room.. (I sugges strongely using this room https://fr.imvu.com/shop/product.php?products_id=37469854 as this FNOF will fly your copter on long distances, you'll need a very big room with a massive number of room nodes to create landing spots) then move it slightly with the help of SHIFT and CTRL just so you don't confuse its node with the room nodes. then you'll want to lock it. Then you can add your favorite helicopter to that node and use the triggers below to make it fly.

Triggers are: FlyN1to2 / FlyN2to1 / FlyN2To3 / FlyN3To2 / FlyN1To3 / FlyN3To1 / FlyN3 / FlyN1 / StopN1 / StopN2 / StopN3 / StopN / LandingN1 /LandingN2 / LandingN3 / StopSoundN

There is the military helicopter I made this moving node for in the first place: https://fr.imvu.com/shop/product.php?products_id=38498970

But remember that it will make fly anything in fact. So if you prefer to use a sofa, make yourself comfy :)