Actually i have thought one that i have often needed when managing my forums...
Whilst you can merge/move whole topics, i'd really like the ability to create a new post/topic from part of an existing topic.
Quite often you get a topic that spawns off-topic discussions within the same topic. It would be nice to be able to hive certain posts to a new topic.
I've finished my ramble now and someone is bound to say that this already exists (i'm not running 7.3 yet :o)
