docs: function getSelectedRowsLength(wwe) {
    const selectionMgr = wwe.componentManager.getManager('tableSelection');
    const $selectedCells = selectionMgr.getSelectedCells();
    let length = 1;
  
    if ($selectedCells.length > 1) {
      const first = $selectedCells.first().get(0);
      const last = $selectedCells.last().get(0);
      const range = selectionMgr.getSelectionRangeFromTable(first, last);
      length = range.to.row - range.from.row + 1;
    }
  
    return length;
  }