Executer node executes other nodes, once or continuously. You may not need it often because all nodes can execute others through Execute links. However, this node can be very handy when structuring logic.
| Execute | Executes the node |
| ↳ On Start | Executes the node at the start of the game |
| ↳ Always | Executes the node all the time, on each frame |
| Enabled | Enable or disable to node. Disabled nodes cannot be executed |
| On Execute | Drag links from this output to other nodes - those that should be executed |
Here's a link to a demo that shows how to use the Executer node: