Nima has full support for Events. You can trigger Events with a keyframe during your animation, which can run any custom code at runtime. Examples include: telling your code when to play a sound effect, when to fire a particle emitter, when to apply force during an animation (like a jump), and more. Events can be attached to any object (this can be used to provide extra context along with Custom Properties). You'll find Events towards the bottom of the Selection Panel.