Ability to create dynamic table widgets via API

Using Chrome's dev tools, I captured the payload submitted to /santaba/rest/dashboard/widgets when adding a dynamic table to dashboard 107 in my portal:

{
  "columns": [
    {
      "columnName": "average",
      "dataPointId": 98,
      "dataPointName": "average",
      "displayType": "raw",
      "enableForecast": false,
      "roundingDecimal": "2",
      "rpn": "",
      "unitLabel": ""
    }
  ],
  "dashboardId": 107,
  "dataSourceFullName": "Ping",
  "dataSourceId": 35,
  "description": "",
  "displaySettings": {
    "pageSize": "25"
  },
  "forecast": {
    "algorithm": "Linear",
    "confidence": 70,
    "severity": "warn",
    "timeRange": "Last 30 days"
  },
  "interval": "3",
  "name": "Ping Latency",
  "rows": [
    {
      "deviceDisplayName": "*",
      "fullName": "All > All",
      "groupFullPath": "*",
      "instanceName": "*",
      "label": "##RESOURCENAME##"
    }
  ],
  "sortOrder": "descending",
  "supportKeyWord": "Table",
  "theme": "newBorderGray",
  "topX": 10,
  "type": "dynamicTable",
  "userPermission": "write"
}