hotkey

or hot key

[ hot-kee ]
/ ˈhɒtˌki /

noun Computers.

an assigned key or sequence of keys programmed to execute a command or perform a specific task in a software application: On Windows computers, the hotkey Ctrl+S can be used to quickly save a file.
Also called shortcut, keyboard shortcut.

British Dictionary definitions for hot key

hot key

noun

computing a single key or combination of keys on the keyboard of a computer that carries out a series of commands