I managed to solve this issue long time ago. So, maybe someone is looking around on same issue, the answer is to use push method. The steps are to push the variable arr which capture all the required property of message into an array
let array = flow.get('array');
if(array === undefined){
array = [];
}
//create object arr
var arr =
{
"No":msg.payload.Name[0].Name,
.....
.....
};
msg.payload = arr;
array.push(msg.payload);
flow.set('array', array);
return msg;
Then, next step can refer to this link below