Eileen=
First off, there is no such thing as a dumb question! In answer to your question, yes, you just need to put in a quantity other than 1 either when listing the item, or from your listings manager page. Etsy will automatically renew the item's listing when it sells and will charge the listing fee to your account each time it renews. I have to agree with what others have said. I get more sales on products that I list more stock of. Case in point, my crocheted hot dog. I had 1 listed, and almost missed out on a big sale because a customer wanted 13 of them. Thankfully she was willing to send me a message and patiently wait for a response to see if I could make more for her. Not everyone is willing to do that though, so it's definitely good to show more stock when you can!