How to modify email before sending when it triggers form a case stage change?

Question

How to configure email templates to open some of them before sending to the customer to make some changes?

Answer

It can be easily changed in the Business-process sending emails. In the element [Send email] change the way of sending from Automatically to Manually. In this case after you change the case status the BP will open the email for you so you could check it and edit before sending. There you will save and send the email.