Disabling shifter button on 1999 V70

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I have arthritis in my thumb and sometimes I can't depress the shift button. I tried duct taping it which works but then you can't get the key out. Is there any way to disable the button so that it will shift without pushing the button but will also allow the key to be removed? I realize this is a safety thing but I am careful and I have no dog or child to shift it out of park when I'm out of the car.