Cannot seem to convert to another payment method

I have an extensive product list in my Pay Pal form.  I cloned the form and I want to convert to another payment method.  I click on delete and JotForm asks me if I want to keep the product list for another payment method.  I say YES but the entire product list is deleted.

The whole list will be deleted when the field is deleted.  However, when you add the new payment field, the products will automatically be added in the new payment field.