What happens when two doors are programed to a 940EV and the close button is pushed?

All doors that are programmed on the unit will close when close button is pushed. It's pretty cool

When the 940EV is programmed to two doors, the enter button will activate both doors to close. This feature can be activated and deactivated by pressing and holding the numbers 1 and 9 simultaneously for 10 seconds. The keypad will blink twice when the one button close is active. The keypad will blink four times when one button close is deactivated.