I have been using Multi quote a lot, but I just noticed that when I quoted one person recently and used multiquote in that thread before it gave me the options to either deselect the other quotes or add them into the current post. So cool! before I was going and unselecting each one individualy!
If you look down below your post it will say QUOTE MQ QR. If you click on the MQ in different posts on the same thread, then hit QUOTE on the last one you want to quote, it will quote them all your reply. It's very helpful with buddy threads.
Cool feature! 
