Can a Recurring Payment record have the payment method changed?
Yes - if you are wanting to change the payment method (eg: Credit Card to Direct Debit), update the record type to the Payment Method that it is to be changed to.
Make sure your record fits the criteria in Question 3 above for the next Payment Txn to be created.
Please Note: Payment Method for existing Recurring Payments CANNOT be changed to PayPal. PayPal Recurring Payments behave differently to other regular payments.