It seems with the influx of new members, and potentially old members not realizing how to do this I've decided to make a little tutorial. This is to better stream line our rules of not double or triple posting in threads.
How to use multi-quote

The button beside quote is the multi-quote button
Select the first post you want to quote by hitting that.
Repeat this for however many posts you wanted to quote.
When you have selected all the quotes you want, hit the actual quote button. It will bring up the standard advanced reply window with all of posts you wanted to quote already in there formatted ready for a response.