Flexmonster - Hours hierarchy

HTML

<link rel="stylesheet" href="https://s3.amazonaws.com/flexmonster/2.3/demo.css">
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<script src="https://s3.amazonaws.com/flexmonster/2.3/flexmonster.js"></script>

<div id="pivot-container"></div>

JavaScript

var pivot = $("#pivot-container").flexmonster({
  componentFolder: "https://s3.amazonaws.com/flexmonster/2.3/",
  width: "100%",
  height: 430,
  toolbar: true,
  report: {
    dataSource: {
      dataSourceType: "json",
      data: getData()
    },
    options: {
      datePattern: "HH:00",
      configuratorActive: false
    }
  }
});

function getData() {
  return [{
    "ID": {
      type: "date string"
    },
    "date": {
      type: "date string"
    },
    "unit": {
      type: "string"
    },
    "verdict": {
      type: "string"
    },
    "channelName": {
      type: "string"
    },
    "bufferTime": {
      type: "number"
    }
  }, {
    "ID": "1",
    "date": "2016-11-22T00:16:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "EUROSPORT",
    "bufferTime": 3120.08
  }, {
    "ID": "2",
    "date": "2016-11-22T00:16:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "DISCOVERY",
    "bufferTime": 2979.22
  }, {
    "ID": "3",
    "date": "2016-11-22T00:16:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "MEGA",
    "bufferTime": 3400.12
  }, {
    "ID": "4",
    "date": "2016-11-22T00:20:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "EUROSPORT",
    "bufferTime": 3030.58
  }, {
    "ID": "5",
    "date": "2016-11-22T00:20:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "DISCOVERY",
    "bufferTime": 3102.66
  }, {
    "ID": "6",
    "date": "2016-11-22T00:20:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "MEGA",
    "bufferTime": 3456.11
  }, {
    "ID": "7",
    "date": "2016-11-22T00:24:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "EUROSPORT",
    "bufferTime": 2900.58
  }, {
    "ID": "8",
    "date": "2016-11-22T00:24:00",
    "unit": "Unit 1",
    "verdict": "PASS",
    "channelName": "DISCOVERY",
    "bufferTime": 2902.66
  }, {
    "ID": "9",
    "date": "2016-11-22T00:24:00",
    "unit": "Unit 1",
...