Hi Donald - I'm afraid there isn't a way to do this at present, however it is on our feature request list as something to look into. In the meantime, the closest thing you can do is add symbols to the map by attaching symbols to any notes/directions - click the symbol icon when adding/editing directions/notes to do this - however, this won't add text to the map itself.
John
How do I add text onto the Map. Start, Finish, etc?