feat(editor): the tracks onto the terrain from the terrain panel too: the terrain model (F5 Terrain) has a step 3, Tracks and terrain, with Tracks onto the terrain, the one to take first, big, what it does told under it (all the tracks go down or up onto the model, loaded along them by itself), then, after "Or:", Only the ones not fitted and Terrain under the tracks, each with a line of the case it's for; the same block stays in the panel of the tracks, under All the tracks of the scenery, with a line saying where the scenery is put on the map while it isn't. The progress of these is shown at step 3, the loading buttons of step 2 greyed meanwhile. The terrain lesson of the tutorial tells of step 3 so

application/editormode.h

@@ -461,6 +461,9 @@ class editor_mode : public application_mode, private editor_track::observer, pri
 	void nmt_restore_terrain(std::vector<TTrack *> const &Tracks);
 	// the terrain of the selected tracks in the panel of the tracks
 	void render_track_terrain(std::vector<TTrack *> const &Tracks);
+	// all the tracks of the scenery onto the terrain model, or it under them: step 3 of the terrain model (Terrain_panel), and in
+	// the panel of the tracks
+	void render_nmt_all_tracks(bool const Terrain_panel);
 	// the chunks waiting for the terrain model and the tiles of the imagery asked for outlined where they will be, so it's seen
 	// what's on its way
 	void draw_nmt_pending() const;