Customizing layout of summary information under the "business card" details

Customizing layout of summary information under the "business card" details

On the Potentials/Opportunity Page, after the summary "business card" information, there's  a section that has Contact Person and a list of Products associated with the potential.  What do you call this section?  In my case, I would like to change the information that appears associated with the Products, but I can't figure out where to do that.