The Key Events require the user to perform an action with the keyboard to trigger all the actions inside.
A Key Up Event will trigger the actions only when the keyboard key is released.
Key Input
By selecting the key input you can press one of the keyboard keys to assign it to the event.
Here are the different Actions you can trigger with the Key Up Event:
Transition ActionAnimation ActionSound ActionParticlesVideo ActionOpen Link ActionCreate Object ActionDestroy Object ActionSwitch Camera ActionScene Transition ActionReset Scene ActionSet Variable ActionVariable Control ActionConditional Action