This plugin has been closed as of 2022年12月10日 and is not available for download. 原因：違反開發指導原則。
It was a great plugin but it seems abandoned. There are old bugs that have not been fixed for a long time, and new bugs that araise with time, but the developer seems not available to work in the plugin anymore.
It works, it is good concept. But support and development seems abandoned. No replies, no care.
I use this plugin across several sites and it's a great addition -- wish it was part of WordPress core it's that useful for modifying already published posts/pages.