return Column(
      children: <Widget>[
        SizedBox(height: 10,),
        new Container(
          padding: EdgeInsets.symmetric(horizontal: 5),
          height: MediaQuery.of(context).size.height * 0.05,
          color: Colors.white,
          child: ListView.builder(
            scrollDirection: Axis.horizontal,
            shrinkWrap: true,
            itemCount: dataStep.length,
            itemBuilder: (BuildContext context, int index2) {
              if(index2%3 == 0){
                return Row(
                  children: <Widget>[
                    Text(" // "),
                    Container(
                      child: Text("Index : $index2"),
                    ),
                  ],
                );
              } else {
                return Row(
                  children: <Widget>[
                    Text(" \n || \n "),
                    Container(
                      child: Text(dataStep[index2].toString(),),
                    ),
                  ],
                );
              }

            },
          ),
        ),
      ],
    );