yep there is a way, give me 2 mins ill find the post out that gives you the inteructions. I think its somthing like hold the open button down for 3 seconds and it changes it to just want you're asking.
Hold the lock and unlock buttons down until the indicators flash twice fast. You then push the unlock button once to open the drivers door and twice for both doors but the boot still unlocks as normal.
I had this on for a while, if the passenger trys to open the door before u have unlocked it, from what i can remeber u have to lock ur car and open it again, as the passenger door will then not unlock. Did my nut in.