Invoices: Creation of credit note without the need to generate second invoice

[Shae]

It would be fantastic to be able to simply create a Credit Note, without having to create a second invoice. 

I have customers that pay by card so there's a cared processing fee that is deducted. This means that the amount received to the account to code doesn't match the invoice amount. Instead of creating a second invoice as a 'customer return', it would be great to be simply able to create a credit note, just like in the older version. \

"Sales: Credit Note"