Change the position of the control panel from the original side-by-side, in which there will be some people stand to block the Control Panel makes it possible for other people to push to the front of the elevator instead.
Change the position of the control from the side of the elevator, which some have stood shading effect to the others do not. To the front of the elevator instead.
Change the position of the control panel of the original side inside the elevator, which will have some blocking control panel makes people press not to the front of the elevator.