[WoW] Is it possible to have just one generic character set?

What you're supposed to do, as per the Pro system, is add to Combat Hotkeys. All of your Hotkeys can go in there, even if you believe it is class-specific. In most cases it can be generalized into something that is not class-specific, e.g. "pre-combat buff" describes something that most classes can do, but no two classes have the same buffs. Or in WoW, only Death Knights have Death Grip, but this can easily fall into the "Pull" button and other classes can take this time to apply other debuffs (Hunter's Mark, etc).

OK. My concern is that I'll end up with a lot of these that only one or two classes will use, but that probably isn't so.