Index: Constructor/UI/MainWindow.cs
===================================================================
--- Constructor/UI/MainWindow.cs    (revision 6278)
+++ Constructor/UI/MainWindow.cs    (working copy)
@@ -147,6 +147,7 @@
             Builders.Add(Project.TOWNS_CATEGORY.fullName, new Action(this.BuildTowns));
             Builders.Add(Project.SURFACE_CATEGORY.fullName, new Action(this.BuildSurface));
             Builders.Add(Project.SCENES_CATEGORY.fullName, new Action(this.BuildScenes));
+            Builders.Add(Project.AIRFIELDS_CATEGORY.fullName, new Action(this.BuildAirfields));
             Builders.Add(Project.ROUTES_CATEGORY.fullName, new Action(this.BuildRoutes));
             Builders.Add(Project.FORESTS_CATEGORY.fullName, new Action(this.BuildForests));
             Builders.Add(Project.SURFACE_DETAILS_CATEGORY.fullName,
@@ -2567,7 +2568,7 @@
                     pair(Project.TOWNS_CATEGORY, pairss("Towns", "Towns")),
                     pair(Project.FORESTS_CATEGORY, pairss("Forests", "Forests")),
                     pair(Project.ROUTES_CATEGORY, pairss("Routes", "Routes")),
-                    pair(Project.AIRFIELDS_CATEGORY, pairss("New Airfield", null)),
+                    pair(Project.AIRFIELDS_CATEGORY, pairss("New Airfield", "Airfields")),
                     pair(Project.REFERENCES_CATEGORY, pairss("References", "References")),
                     pair(Project.SURFACE_DETAILS_CATEGORY, pairss("Surface Details", "Surface Details")),
                     pair(Project.SUPERFICIAL_CATEGORY, pairss("Superficial", "Superficial")),