Programmable things

[x5e53]

What things can be programmed on a BMW E53 X5 4.8is 2004?

I want to get the Chirp sound and mirrors auto folding on lock.
But is there anything else that people have had done?

[Sapphire4.8is]

I have programmed auto locking once moving, and key memory, so seats and mirrors automatically move into position depending on the key used to unlock. Quite handy as my wife uses the car as well.