How to Save Template as Other Email Type? or How to Copy Email Template
You create your template for New Order and also, you want to save it for Failed Order.
In this case, this functionality is for you. Go to the header controls and click Options button, then select
Save as... button.
Then you will see the below image
Just select language, email type and click Save button
That is all, your new template is ready for use.
NOTE: After saving the template as another email type, you cannot reverse it. It will override the current template