My menu.txt file has very minor changes, basically I've changed just two lines for weather reports and I have included compatibility for TDW's UIs + Real Navigation (will perhaps add compatibility for other UI mods as well in the future). I guess if you have other important mods that overwrite this file, for now simply delete it from my mod before installing, because the mod will work without it anyway. It's just that fog in weather reports will be incorrectly displayed.
Or maybe I will just remove the file and post instructions on how to modify it manually in the OP.
I'll have a look at that JTXE thingy as well, thanks.
Edit: For now, I've updated the first post with how to manually edit menu.txt with my changes.