As @dropship_helps asked, are you referring to the Buy Button? Also, did you mean the Dawn theme as opposed to the "Down" theme, which is not available in Shopify's Theme store?
The reason I ask is that Shopify does not recommend the use of Buy Buttons on your Shopify online store or blog, because they can cause problems with the checkout process. The Buy Button is intended for use on external websites and third-party providers, like WordPress.
If you could provide me with a little more context, and explain what you're trying to achieve, I'd be in a better position to help you!