Adding "Add To Cart" Button To Collections Page [Refresh Theme]

[BigBComics]

Hello! I'm looking to add the "Add To Cart" button onto each item on my collections page. I want to make it easier/faster for customers to add items to the cart. I've seen on other themes that there's an option in the editor to add the button, but the Refresh Theme doesn't have it natively. Is there a way to achieve this with code?

Attached is a photo of our main page featured collection, where the button is.