I would like to 'hide' our progression in WOTLK raids without having to actually delete the progression tables.

Why? Because Wrath progression isn't that important to prospects coming to our site and looking us over, but I don't want us to lose the history in case we want to go back some day and get the few bosses we have left.

Is that possible?

There is functionality on the way to make past raid progression sections "collapsable", but at the moment, it's not really possible without some pretty complicated javascript manipulation.

In a future release would it be possible to set a permission at each of the progression sections? Then it would be as simple as the web site admin\owner toggling ranks to view.

Just an idea.