There is just one standard template for each type of response.
In Content Administration:
Click the plus sign (+) next to the Response Templates entry in the content browser.
Click the type of response that you want for editing the template.
Make your changes. See Response Templates window.
Click the Save the changes made to this entry icon on the toolbar.
NOTE: You cannot delete a Response template. You can, however, delete all the text from it.
Learn about Response templates.