The multi-quote button: how to use?

As you might have seen, there is a couple of days ago a button added to the forum:


It's the most left button, called Multi-Quote. If you want to quote not 1 but more posts, you click the multi-quote button, and then "new topic". The quotes will be automaticly in your new post.
Don't know if you're gonna use it, but it's nice by the time you need it