User Macros: New Options + Sharing Macros with others in game

[Nurvus]

I suppose that the next macro works.
/ac "Aero" <mo>
/ac "Cure" <mo>

Yes, but for example, in WoW, even the icon changes dynamically according to macro conditions.
In the above example, the icon would change depending on whether I'm mousing over an enemy or an ally, or none at all.

In FFXIV almost every "solution" involves bruteforcing your way through action spam, as the game tries to cast both but only manages one.
Same with your "queue" Macro.
All you're doing is spamming countless actions and one of them should eventually go through.

What if your macro is meant to heal mouseover, but if none is available, behave normally?

/ac "Cure" <mo>
/ac "Cure"

In this case, your macro wouldn't work.
It's a pointless restriction that shouldn't exist to begin with.