Reconcile multiple moves from accounting > statements

I’m still trying to find the best solution for a problem described here - how do I reconcile a payment, a credit note and an invoice.

On the way I stumbled over the accounting > statements feature and found that I can reconcile bank payments with invoices there. That appeals to me, as with this method (AFAIU) I can work my way through the bank statement.

No problem with using a bank statement and an invoice - works nicely. When trying to create a position with the credit note in question - that one is selectable. But it I chose it, it will immediately disappear.

(That box encircled in red gets empty immediately.)
Could the reason be that I cannot set up a statement journal? - Or is that feature not meant to reconcile credit notes as well?

Thanks a lot in advance
EG