[AnssiH]

Interesting. Mine has an even longer delay than 2s (3-4s?) so I always press the close-doors button which removes the delay, but it never occurred to me I could shave some additional milliseconds off by pressing the close-doors button before the floor selection button.

[praptak]

In my case pressing the close-doors button after the floor button does not do anything - it is as if the floor button sets the timer on the doors, which then cannot be changed by the close-doors button.