Hello community, 
I've put together a script (Hydralift). 
The lift goes under the water. So I've created an attach script. 
I only have the problem that I can not fly with the hydra. 
Here is my script: 
 
lift = createObject ( 3115, 1515.3249511719, -2945.1364746094, -60, 0, 0, 0) 
hydra = createVehicle ( 520, 1515.7152099609, -2945.6892089844, -10, 0, 0, 0 ) 
  
function Gate_down () 
moveObject (lift, 3115, 1515.3249511719, -2945.1364746094, 1.7000000476837, 0, 0, 0 ) 
end 
addCommandHandler ("hydra1", Gate_down) 
  
function Gate_Up () 
moveObject (lift, 3115, 1515.3249511719, -2945.1364746094, -60, 0, 0, 0 ) 
end 
addCommandHandler ("hydra2", Gate_Up) 
  
attachElements ( hydra, lift, 0, 0, 2, 0, 0, 0 ) 
  
addEventHandler ( "onVehicleEnter", getRootElement(), 
function ( thePlayer, seat) 
detachElements ( lift, hydra ) 
end 
) 
 
Can one help me? 
Would be very nice 
Best regards 
JokersBro