I would like to duplicate the Purchase Order payment method and rename it to 'Group Purchase Order'.
Then also when the customer passes through the checkout, I want to reword the text that sits above the box where the customer enters the po number from 'Purchase Order Number' to 'Group Order Number'.
I will used the payment method for a specific customer group. I have a extension already that allows me to switch on and off different payment methods for different customer group so it really is only the payment module I need.
Note that orders are created both via front and back end so the payment module must work in both environments.