Some nodes are time based, like the Clock node, Delay node, Stopwatch node and even the Camera node. When these nodes are added to a flow, a playback button will appear. This allows you to pause and play all the nodes with a time component.

Playing

Paused

<aside> 💡

Keyboard shortcuts: Play: Command + I, Pause: Command + O.

</aside>

Time based nodes can be heavy, so keep out for the memory warning. If you get a memory warning, time will automatically pause to avoid a crash.