src/org/tiefaces/components/websheet/utility/CellUtility.java
private static void matchCommentSettings(final Cell newCell, final Cell sourceCell) {
		try {
			XSSFVMLDrawing sourceVml = getVmlDrawingFromCell(sourceCell);
			XSSFVMLDrawing targetVml = getVmlDrawingFromCell(newCell);
			CTShape sourceCtShape = getCtShapeFromVml(sourceCell, sourceVml);
			CTShape targetCtShape = getCtShapeFromVml(newCell, targetVml);
			targetCtShape.setType(sourceCtShape.getType());
			CTClientData sourceClientData = sourceCtShape.getClientDataArray(0);
			CTClientData targetClientData = targetCtShape.getClientDataArray(0);
			String[] anchorArray = sourceClientData.getAnchorList().get(0).split(",");
			int shiftRows = newCell.getRowIndex() - sourceCell.getRowIndex();
			/*
			 * AchorArray mappings: 0->col1 1->dx1 2->row1 3->dy1 4->col2 5->dx2 6-> row2
			 * 7->dy2
			 */
			anchorArray[2] = Integer.toString(Integer.parseInt(anchorArray[2].trim()) + shiftRows);
			anchorArray[6] = Integer.toString(Integer.parseInt(anchorArray[6].trim()) + shiftRows);
			targetClientData.getAnchorList().set(0, FacesUtility.strJoin(anchorArray, ","));
		} catch (Exception e) {
			LOG.log(Level.SEVERE, "matchCommentSettings error = " + e.getLocalizedMessage(), e);
		}
	}
private static void matchCommentSettings(final Cell newCell, final Cell sourceCell) {
		try {
			XSSFVMLDrawing sourceVml = getVmlDrawingFromCell(sourceCell);
			XSSFVMLDrawing targetVml = getVmlDrawingFromCell(newCell);
			CTShape sourceCtShape = getCtShapeFromVml(sourceCell, sourceVml);
			CTShape targetCtShape = getCtShapeFromVml(newCell, targetVml);
			targetCtShape.setType(sourceCtShape.getType());
			CTClientData sourceClientData = sourceCtShape.getClientDataArray(0);
			CTClientData targetClientData = targetCtShape.getClientDataArray(0);
			String[] anchorArray = sourceClientData.getAnchorList().get(0).split(",");
			int shiftRows = newCell.getRowIndex() - sourceCell.getRowIndex();
			/*
			 * AchorArray mappings: 0->col1 1->dx1 2->row1 3->dy1 4->col2 5->dx2 6-> row2
			 * 7->dy2
			 */
			anchorArray[2] = Integer.toString(Integer.parseInt(anchorArray[2].trim()) + shiftRows);
			anchorArray[6] = Integer.toString(Integer.parseInt(anchorArray[6].trim()) + shiftRows);
			targetClientData.getAnchorList().set(0, FacesUtility.strJoin(anchorArray, ","));
		} catch (Exception e) {
			LOG.log(Level.SEVERE, "matchCommentSettings error = " + e.getLocalizedMessage(), e);
		}
	}
Use low level API to match the comments setting.

@param newCell
target cell.
@param sourceCell
source cell.