Remove single spawning object

Before I ask, thanks for the help!

I have searched the forums and can’t find a specific method for removing single items from an object spawn and continuing the spawn loop.

On a related subject how can I spawn multiple copies if the same object without rewriting all the code in duplicate?
I am new at both code and Corona so please use small words and speak slowly.
Thanks [import]uid: 31005 topic_id: 6703 reply_id: 306703[/import]