It would be good to have a feature whereby an admin (or an users) could re-send or re-submit an order to PayPal etc. for payment. For example this would be useful in the following situation:
User creates order and clicks through to PayPal for payment
< for whatever reason payment doesn't complete and window is closed >
Order status in back-end of EShop is "created"
User now wants to re-pay for this order. Either admin or user can select the order and should then be able to send a link to the user or click on a generated link to go back to Paypal with the order ID, payment details etc. to process the payment again