Combat Ability Hotkeys

[Bardolap]

In the options menu for key bindings, there are definable key bindings for "Use Combat Ability 1" through "Use Combat Ability 8." I noticed that I already had CTRL 7 and CTRL 8 bound to abilities 7 and 8 (Not sure if I did this or if it was that way by default, as I've played off and on for 6 years now...) but my Combat Ability window only shows 4 combat ability buttons. Am I missing something? Is there a way to choose 8 different combat abilities? I normally don't use that window at all, I simply make hotkeys from the skills window and bypass the need for this, but could see a definite use if I wanted to use them in macros.