Open the Zones Inventory (under Quick Data Mining). You’ll get a list of zone names. Find the one of interest. The two columns “Wells where present” and “Wells where absent” are magic–if you right-click, you can filter (“Project filter”) to show (in the Project Browser) only the wells listed in those cells.
An additional tip is that the Zones Inventory is dynamic with the Project Browser, so if you filter in the Project Browser to only show one group of wells, then click the Refresh button the Zones Inventory window, you’ll get results only from that group.