[
    {
      "op": "core/column-addition",
      "engineConfig": {
        "facets": [
          {
            "type": "text",
            "name": "Column 1",
            "columnName": "Column 1",
            "query": "^\\*",
            "mode": "regex",
            "caseSensitive": false,
            "invert": true
          }
        ],
        "mode": "row-based"
      },
      "baseColumnName": "Column 1",
      "expression": "grel:value.slice(1)",
      "onError": "set-to-blank",
      "newColumnName": "value",
      "columnInsertIndex": 1
    },
    {
      "op": "core/text-transform",
      "engineConfig": {
        "facets": [
          {
            "type": "text",
            "name": "Column 1",
            "columnName": "Column 1",
            "query": "^\\*",
            "mode": "regex",
            "caseSensitive": false,
            "invert": true
          }
        ],
        "mode": "row-based"
      },
      "columnName": "Column 1",
      "expression": "grel:null",
      "onError": "keep-original",
      "repeat": false,
      "repeatCount": 10
    }
  ]