Add a calculation of the number of orders to the report

There is a report https://datapoint.center/admin/report/desiner/18/view/?filter_templatetable_datefrom=2022-05-01&filter_templatetable_dateto=2022-05-15&filter_order_sourceid%5B%5D=4&filter_order_authorid=33534&filter_order_client=462934&filter_user_client=&filter_product%Bcatery_productid= =481&filter_templatetable_productgroupby=&templateid=49&ok=%D0%A4%D0%B8%D0%BB%D1%8C%D1%82%D1%80%D0%BE%D0%B2%D0%B0%D1%82%D1% 8C Products by employee [file]16527[/file] Here the calculation is based on the goods in the order, we want to add a setting here that would display the "Number of orders" column. Number of items = 2 pcs. These 2 items are in one order. Total, a column is needed that would display the number of orders with the selected product. An example of this order from a report https://datapoint.center/admin/customorder/order/?filtercdatefrom=2022-05-01&filtercdateto=2022-05-31&filterctimefrom=&filterctimeto=&filtercustommediapl