Heroic Opportunity Wheel
 

Hello,
I'm using the steel UI with Perdition's bottom bar and suddenly today my Heroic opportunity wheel stopped showing up. Is there something I can press to get this back? I cant find it in any of the menus i.e. alt + ???. Any help would be greatly appreciated.

Not sure if there's a key combo. Try this:

-Attack a gray mob and turn autoattack off. (So you're locked in an encounter that's not going anywhere for either side.)
-activate your HO starter. (Lucky Break, Arcane Auger, etc.)
-type /show_window MainHUD.Heroic

All I can think of to try at the moment.

It's probably off screen. You'll have to go into your Options panel and go to User Interface - Game Windows - Reset location for all windows. That should work, although you'll have to rearrange everything when you're done.