This is actually something I've been wanting for a while, but never really got around to it.
You may know of MyBB's Split Posts mod tool - useful when a post is off-topic and should be split into another thread. However, I find that, at many times, users get off-topic half-way through a post, so simply splitting the post doesn't always seem right.
This plugin adds a new post moderation tool, allowing you to duplicate selected posts. If only one post is selected, you will be able to "dissect" the post (sorry, can't use the word "split"
![Tongue Tongue](http://mybbhacks.zingaburga.com/images/smilies/tongue.gif)
). Dissecting a post basically makes copy/copies of it, but allows you to edit the message of each at the same time.
After you duplicate the posts, you can then split them