What is the difference between duplicate and import trees?

What is the difference between duplicate and import trees?

The duplicated tree will share all the same triggers/ actions/ responses with the original tree. Please click the "Save as" button when saving a new component to prevent making changes to the original tree.

Export and import will create trees with a new set of triggers/actions/responses. This is the better choice for controlling or testing trees. Please refer here for more details.