Abilities I haven't learned yet, can I get them on my bar somehow?

[Rawrz]

While leveling to 60 in HW I did it with placeholder macros. The macros did nothing except an /echo that made a sound and called me an idiot for pressing a button with nothing on it.

This is what Ive done with multiple classes, sans the insulting echo q-q.

You'll have to know the name of each skill you'd like to add.

/macroicon "skill name

That's it. Replace them with the real skill when you obtain them, until then you at least will become visually accustomed to your hotbars.