delete default j. doe orders in 1.7.7.1

[carianis]

hi,

can anyone please tell me how one can delete the default j.doe orders that prestashop 1.7.7.1 is installed with?

as reading thorugh the forum, could not do any of the following: prestahop cleaner is not available for install, browser url method replacing vieworder with deleteorder no go, AdminOrdersController.php not in controllers/admin/

thank you!