If you're using macros on MNK, you're doing it wrong.

The only thing I'd even consider putting in a macro is Mercy Stroke together with either Steel Peak or Howling Fist, and that's because Mercy Stroke is a very situational skill and hardly ever a game-changer. Only viable-ish macro I can think of. Everything else is a crutch for being unable to figure out a layout and/or build the muscle memory with one. You will lose flexibility. With some macros ideas, you'll even lose DPS.