The third drop-down menu in the upper-left hand corner of the Promotion Response Analysis window is the Product drop-down menu. This drop-down menu contains product descriptions, or Line Groups/Demand Groups (if you selected the Line Group/Demand Group, category level in the previous drop-down menu). You can also select the All UPCs/DGPs/Line Groups Category Average for an average of all products/Demand Groups/Line Groups in the category.