docs: function _findFocusTd($newTable, rowIndex, colIndex) {
    const tableData = dataHandler.createTableData($newTable);
    const newRowIndex = dataHandler.findRowMergedLastIndex(tableData, rowIndex, colIndex) + 1;
    const cellElementIndex = dataHandler.findElementIndex(tableData, newRowIndex, colIndex);
  
    return $newTable.find('tr').eq(cellElementIndex.rowIndex).find('td')[cellElementIndex.colIndex];
  }