Wondering if anyone knows if it's possible to program the Phantom so that the transmitter buzzes an alarm when the battery is low. If not, I hope DJI is listening and will put this on a wish list. Also, does anyone know if the propellor nuts screw on clockwise, like most nuts, or counterclockwise, or both. The propellors were put on by the dealer and are quite tight, and I so I can't figure out what direction I have to turn to get them off, and I don't want to try too hard for fear of breaking the blades. Thanks in advance.