Hi,
We have the following field data in our document :
            "_source": {
                "counter_name": "Counter_A1",
                "counter_value": 11,
                "group_name": "group1",
                "timestamp": "2019-11-26T11:45:01Z",
                "vnf_name": "vnf-09"
            },
           .......
            "_source": {
                "counter_name": "Counter_B1",
                "counter_value": 33,
                "group_name": "group1",
                "timestamp": "2019-11-26T11:45:01Z",
                "vnf_name": "vnf-01"
            },
           .......
           "_source": {
                "counter_name": "Counter_A1",
                "counter_value": 34
                "group_name": "group1",
                "timestamp": "2019-11-26T11:55:01Z",
                "vnf_name": "vnf-12"
            },
We are trying to make a Line Chart with Y axis the field values of counter_value ( number ) for each field value of counter_name and as X axis the timestamp.
In .eg. like graph
Y axis has counter values of each counter name and X axis timestamp
