[Phanx]

The option I mentioned is a new option in the game itself. It's not provided by an addon. It's Blizzard's attempt at replacing addons like OmniCC, but it has a pretty big design flaw, in that in addition to adding a number for the cooldown, it also completely hides the actual cooldown "spiral" graphic. It applies to all cooldown objects in the game, like OmniCC and such do, and as far as I know there's not a way to turn it off or on selectively for specific cooldown objects, through Lua or otherwise.

I'm also pretty confused at this point, since the title of this thread mentions Grid but your first post is talking about an oUF plugin, which has nothing to do with Grid, and now you're asking about hiding action bars... what exactly are you trying to do?