[Mobhack]

And that is likely because the editor in the game is an integrated part of scenario design - a lot of these variables are scenario variables, so can only be set there.

Scenario variables dont get saved as part of a map save. gBeach and gWideRiver (along with the battle type, visibility etc) are part of scenario save data, not map save data - so if you save the map you made in the scenario editor and import it into another new scenario, you would have to set those scenario-specific flags once again if you want them in the new scenario.

The extended map editor is for editing map data only, and for doing stuff like cut and paste and having an undo facility etc. You then need to load your map to the scenario editor inside the game to start making a scenario (with type of battle, water type, visibility etc).