I am not sure if there is an on-going Suggestions Thread for the P4? (if there is, please move my suggestion):

Suggestion:

Please enable Home Lock in Sports Mode; currently it works in P mode only.

Reason:

Many times it is hard to see the screen due to glare, or the battery is low and we would like to bring the P4 back fast and in a straight line.  I have read that the most efficient speed is at about 30-35 MPH, which we can only achieve in Sports Mode.  This will also help us navigate during bad video reception times.

All intelligent flight modes can only be used from P-Mode.
It's safer that way, I don't think that will change.