This  module allow to change automatically the currency according to payment method at checkout With this extension you don't need to ask your clients to change the currency to pay with specific payment method, or if you use a payment method don't support one of currencies that you have, then you can change the currency for a supported currency to let client pay without the error currency messages.

This extension allow you to specific the currency for your payment method if you want to use a currency for your payment method or the payment method didn't supported same currencies you can change the Currency before confirming the order by display the confirm step with the select currency. Or change the currency of order after confirming the order by change the currency in payment page for the instant payment method or order currency for post payment method.