I stood with a crowd of people in an office building lobby, looking for the “Up” button for the elevator. Then we saw this panel.
You are supposed to key in your floor. Then, when you get in the elevator, it takes you right to your floor.
Unless you get in the wrong elevator. Because there are no floor buttons inside the car.
How does this help?
P.S. What does the wheelchair button do?
P.P.S. This may explain it.