WoW Vehicle action bar ability's not working
When i am flying on an in-game drake, or in-game vehicle, I cannot use the action bar abilities. I have to click on the ability, instead of using the numbers on my mouse to use the ability. The numbers from 7 to 12 work, but I cannot move the ability's from numbers 1-6, into the 7 to 12 buttons, on the action bar to be able to use the abilities. Can you help me figure this out so I can play the game a lot better and easier. Also, the action bar buttons work on one of my characters, but will not work on any of my other characters, I have gone over just about every setting I can think of to try and make this work, but I cannot figure it out.