- Enable the "My Account" module of the plugin (/wp-admin/admin.php?page=wc-settings&tab=jetpack&wcj-cat=dashboard&section=all_module)
- Add a status such as Canceled in the "Add Order Status Actions" settings of the module (/wp-admin/admin.php?page=wc-settings&tab=jetpack&wcj-cat=emails_and_misc&section=my_account)

As any logged in user, such as a subscriber, place an order and go the Order dashboard, a 'Canceled' action will be displayed in the Actions column, copy its link and change the status=canceled to status=processing, e.g: