[drunkonvinyl]

My favorite, rare, elevator feature: one where you can “unpress” a button. Make a mistake on floor selection? Just tap it again.

[glandium]

Some (many?) elevators allow to deselect with a long press on the button.

Some elevators also have a cheat code that bypasses any selected floor by pressing the button of the floor you want at the same time as the close door button.

[perryizgr8]

Many elevators let you unselect with a quick double tap.