Product Groups
You can create different product groups to show them in Additional Reports. RegKeeper will show summarized sales statistics for products in group in Detailed report.
To create new group click Add button and enter group name.
In the bottom list of products check products that must be included into this group. To add (remove) product to (from) group just check (un-check) its name in the products list.
Use Delete button to delete the selected group.
Use Rename button to rename the selected product group.