What I mean is the delete button (trash can icon) on the index of a resource (next to the view and edit icons). When you click on it you will get a modal asking to confirm the delete of the selected model.
Little context:
When a user delete's a model from the index overview I would like to add a custom message that is send to users that are related to that model.
What I would like to do, is add some custom functionality to the modal that is shown and act on it. I am assuming this is a normal Nova action like other custom actions where you can add fields and and a handle method.