public override bool RunImp(Task task, AppEnv appEnv, bool withChildren)
        {
            string tempDir = appEnv.TempDir + @"export-lsa4-with-vector-data-5\";

            Command command = null;
            command = new Command();
            command.Type = Command.CommandType.EDTU4;
            command.EdtuCommand = "build-navigation-mesh";
            string surfaceL0filename = tempDir + "surfaceL0.ofsh";
            string navMeshfilename = //todo
            command.Args = surfaceL0filename + " " + navMeshfilename;
            command.ErrorsFile = tempDir + @"export-vector-data_errors.ofsh";
            task.AddCommand(command);

            return true;
        }