This feature should be working, Serulin. It's a main feature in T3 so when we release, it should be checked. Please note that, each template style is assigned to one layout, and menu items.
P/S: you can pm me your site url and admin account, I can check for you.
Gardner.
Thanks for the reply. Is there anything you can think of that may break it? When I have hide enabled it this code is present in the source code:
<div class="span12 item-first" data-default="span12" data-wide=" span12 hidden-wide " data-mobile="span50">
And when I have it disabled it is not present. But regardless, it is still showing the block.