Rated 5 out of 5 stars

It's great. As mentioned before if we were able to drag and drop in subfolders it would be even better.Thanks

EDIT: somehow, it is possible now to drag messages into folders (on ubuntu 64bit, thunderbird 17.0.5), which is absolutely brilliant. Even without this feature though, this add-on has become my favourite after having used it for a couple of months and I can't imagine thunderbird without it now. Thanks again to the developer.

This review is for a previous version of the add-on (0.4). 

I'm sorry, I don't fully understand your suggestion.