public void onSolderEdges() { editor Editor = "Editor"; TerrainEditor ETerrainEditor = "ETerrainEditor"; // # Work with all terrains on the loaded level. TerrainSolderEdgesAction action = new ObjectCreator("TerrainSolderEdgesAction").Create(); action.solder(); action.addToManager(Editor.getUndoManager()); ETerrainEditor.isDirty = true; }