I don't have the smart key so I'm sorry I am of no help to you. However I've tried repeatedly to get my regular wireless fob to unlock all of the doors (not just driver) on the first press of the unlock button. I've followed the manual exactly and the only thing I've managed to toggle was the sound feedback when locking the doors. Maybe our keys are defective or something. Or maybe I'm just missing something.
__________________________________________
View my fuel log 2015 Mirage DE 1.2 manual: 42.7 mpg (US) ... 18.1 km/L ... 5.5 L/100 km ... 51.2 mpg (Imp)