Create popup fields to fill when using Canned responses
I would like to have the ability to add editable field tags to Canned response.
For example, in the body of the Canned response use $[User name] to indicate a users name and when the response is added to the message there is a popup with a field called "User name" that can be filled which will replace "$[User name]" in the body with the filled in content. Clippings for Firefox has this feature if you need reference.