Twitch's work on Extensions -- video overlays and visual embellishments for streams -- keeps plugging along. Today the broadcasting service announced that now every user can turn on up to three different video overlays and a trio of below-player Extensions for their channel. It all sounds pretty easy to use, too. Just head over to the Extensions Manager on your channel dashboard and activate the six add-ons you want. To celebrate, there are even a handful of new Extensions available from developers, some explicitly made to be combined with one another.