"I went into the QuickReport"
Run QuickReport or Sales, such as Reports menu > Sales by Item Summary or Detail, or Sales by Customer Summary, Columns by Item Type or Item Detail.
Filter on item.
Scroll UP. You overlooked "Multiple Items." Now you get the Pop up to checkmark what applies.
Retitle this report, such as "Sales for J Jones Royalty" and memorize it. Update the Item Filter, retitle it for the Next Royalties, memorize it as New, not Replace. Memorize these all into a Group you named "Royalty reports." Now you double-click the Group, and they all run at once.