Starting with Sytist version 0.8.5, there is a new option for "Show buy icon above photo instead of displaying the products to the right of the photo" when editing a price list.
With that selected, instead of showing the products to the right of the photo like this:
It will display a Buy Photo icon above the photo like this:
And here is how to edit that option, click "edit" under your price list name in the Photo Products section:
