Are there any combat macro's that actually work?

[Rongway]

That's wild people do that, because there's an ingame function for this already that doesn't use the macro system.

That keybind can only change one hotbar, and because of the job's action set you might have affected buttons on multiple hotbars. It rarely makes sense to put all the buttons that need to be swapped on the same one hotbar just because they are the buttons that need to be swapped. Buttons go where they make sense, then you worry about hotbar swaps. See especially: SAM.