Big Business 14 renames the Qty Pricing Import (was Item Pricing) to improve clarity.
Qty Pricing is a complete feature set, turned on in Item Prefs, that lets you offer price breaks on quantities purchased. The import speeds the process of adding Qty Pricing.
Use the Update in the Items Search to delete old Qty Pricing before importing new. Use imports for items to change regular prices or assign Qty Group for mix & match.