Question about De'Longhi Magnifica S

Yes, on this machine you can set the automatic standby time to 15 min, 30 min, 1 h, 2 h or 3 h. To change this setting, turn off the machine, hold down the ECO button until the indicator lights appear, then choose the desired duration with the espresso button and confirm with the large cup button.

When I hold down the eco button or the steam button, no indicator lights appear?