To reset the array, you can use “Clear”. This doesn’t do anything to the actors themselves, it just “clears” all the variables these actors are referenced by.
See it as a shortcut to the item, where deleting the shortcut, doesn’t do anything to the item itself.
However when you run a “destroy” function on it, you destroy the item itself.
Therefore when you destroy an actor, you can’t “undestroy” it. So when destroyed, that is the final action for that item. Instead you might want to use the “set hidden” function on it instead, if you want to keep the actors for later use.