MarketPress GridView

Hi everyone,

I'm developing a site for a customer and have switched to MarketPress. I have modified the current theme to have custom home page and this is all fine. The existing site uses a product category on specific products to show featured products on the home page in a grid (3x2). I want to replicate this. Is there a way to retrieve posts by tag and only return the thumbnail? Using mp_list_products with the tag option works but returns the entire product.