Action nodes are only available in Pro stories.
Action nodes are similar to Player nodes, except instead of being triggered by a player saying something, they are triggered by a player doing something.
An action node has a single field: the text of the action that you want to react to. The action text is sent through an SDK by using the
action() event. If the action that is sent exactly matches to the text in the action node, then this node can be passed through.