I've used this plugin a few times before and I must it's pretty AWESOME. However I've now been challenged to use this plugin with the eWay Stored Payment API.
Basically it's the same as the Direct Payment API except the merchant has to log into eWay to manually approve the transaction. From what I understand the details sent to eWay are the same, with the exception of the eWay URL and the ewayCVN field (eWay doesn't need it for Stored Transactions).
Without modifying the plugin directly, is there a way we can hook into the plugin to change the payment URL? If we have to, we can modify it.