From the WooCommerce order list, when you click the "eye" icon it will show a modal containing a preview of the order.
Currently, it has Billing Details, Shipping Details, Email, Phone, Payment via, and the products.
Is there a way to add extra data to it? Maybe like first name and last name which is supplied in the checkout form?
The code for the modal is located here: https://github.com/woocommerce/woocommerce/blob/master/includes/admin/list-tables/class-wc-admin-list-table-orders.php#L356
I can edit the plugin directly but I don't want to do that as it is a bad practice and changes will be removed upon update.