Hello AbanteCart Team!
I would like to advise you adding a new category where members can post their Suggestions about improving AbanteCart interface.
i suggest to add to: admin>orders> a multi choices of delivery, currency, payment etc. methods where can the admin change them according to the changes happens during the order process. for example: my clients mostly doing mistake that they don't choose the correct currency for transferring the required payment through transfer bank method, that's why we ask them to replace a new order with correct required currency. other thing, some time we need to change the payment method and delivery method because some changes upped during the order process. i hope you are taking these suggestions seriously to make the cart more flexible.