docs: public boolean isCellEditable(int iRowIndex, int iColumnIndex)
      {
          FieldList fieldList = this.makeRowCurrent(iRowIndex, false);
          if (fieldList != null) if (fieldList.getEditMode() == Constants.EDIT_NONE)
              if ((m_iLastRecord == RECORD_UNKNOWN) || (iRowIndex != m_iLastRecord + 1))
                  return false; // Don't allow changes to deleted records
          return true;        // All my fields are editable
      }