plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BSL%2BDataGridRow%E3%82%AA%E3%83%96%E3%82%B8%E3%82%A7%E3%82%AF%E3%83%88%E3%81%8B%E3%82%89%E3%82%BB%E3%83%AB%E3%82%92%E6%89%B1%E3%81%86
plugin=diff is not implemented.