Q-Shop offers several cross-promotion tools. One of them is the ability to suggest other products based on the product being displayed or the products in the customer's shopping cart.
Product suggestions allow you to cross-sell products that are related to products your customers have already shown an interest on or are already buying and are therefore likely to be interested in.
Q-Shop Pro will also display the product suggestions in nicely formatted tables with product pictures for maximum effect rather than the list used in Q-Shop Lite.