Woocommerce – adding an edit button to pending orders for customers

Hi all,

I’ve setup my woocommerce store so that a site administrator can create orders for customers and then notify them so they can login, view the order, pay or cancel. This is what it looks like:
https://www.dropbox.com/s/fc51iwz7ci88you/Screenshot%202014-07-09%2016.08.09.png

Only I’d like to add the option for the customer to edit the order before paying. Any ideas on how I could achieve this?

Thanks

Pat