So… you are SCMDraft’s developer? Nice to meet you. BTW have you thought about the benefits of Open Source? If the code is available for everyone in a platform such as SourceForge or GitHub anyone can contribute, even if something happened to you and you couldn’t work on it for a long time for example.
That should help since a working map editor doesn’t seem to be shipped with the game anymore, which is quite sad, I used to make lots of maps just for fun, just to try for example what would happen if you had a situation with heroes and many units and so on. Or making my own custom campaigns with my own version of the stories.