Hi,
Yes, you are right it is very annoying that you can't customize your credit note template as I have come across the same problem.
But, I have got around that and make my credit note a bit more presentable.
I created a new template for my sales invoices.
Then use the default template to make changes to what I need on my credit note, getting rid of unwanted column, etc, making the credit note a bit more presentable.
AL1
