There is a limited way to do this in SiteCatalyst. You'd have to have an internal tracking code associated with each of the key elements/areas you want to see and set an impressions success event and pass them items/areas to a List Var (Page View expiration). Then when the visitor clicks on one of the items, you would set a second success event and the same List Var. then you can use the List Var and the two success events and a Calculated metric to see Impressions, Clicks and a CTR % by item/area.
Adam Greco
Senior Partner, Web Analytics Demsytified