I’m not sure I understand what you’re saying… I want them to see an add to cart button so they buy pictures. It needs to be highly visable so they are likely to push the button without fiddling around. People are fickle and tend to not play around with trying to figure out the check box and then look around for an add to cart link.
The ability to sell pictures is what sets this plugin apart, but to use it for a store it should be Extremely straight foward on how to buy the picture. Fewer clicks and looking around the better.