Current questions and answers regarding the map editor.

How do you edit a message after winning?

What do you mean? Do you want to edit the message after completing a mission and write something like "This is a real victory - not a defeat!" in it?
Well, what prevents you from creating a text file and writing what you think is necessary in it? You can do the same procedure for the message about losing ("This is your shameful defeat - not a victory!").