[
  {
    "op": "core/column-addition",
    "engineConfig": {
      "facets": [
        {
          "type": "list",
          "name": "M|527",
          "expression": "isBlank(value)",
          "columnName": "M|527",
          "invert": false,
          "omitBlank": false,
          "omitError": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectBlank": false,
          "selectError": false
        }
      ],
      "mode": "row-based"
    },
    "baseColumnName": "M|527",
    "expression": "grel:forEach(value.split('␟'), v, forNonBlank(filter(v.split('\u001f'), f, f[0] == 'p')[0].slice(1), x, '\u001fi' + x, '') + forNonBlank(filter(v.split('\u001f'), f, f[0] == 'a')[0].slice(1), x, '\u001fa' + x.replace('¬','').replace(/^:\\s?/,''), '')).join('␟')",
    "onError": "set-to-blank",
    "newColumnName": "4243",
    "columnInsertIndex": 3,
    "description": "Create column 4243"
  }
]