You must log into the administrator section to use this function.

Scroll down to the button to clear the sales in the turbo drive.

if you wish to preserve these sales you must first move them to the sales archive. Clearing the sales in the turbo drive will effectively remove all evidence of the sales that have taken place that are in the turbo drive.
Please note, after 250 sales accumulate in the turbo drive they are automatically moved to the sales archive. Sales left in the turbo drive during a backup are not archived or saved..