for my shamen, i made 5 macros with like /cast lesser healing wave vantul, or whatever the syntax is.. then put them on hotbars on each guy and bound the keys to F1-5 so if it hit F1 all 5 heal the first player int he party..

The party order always stays the same as my invite macro, cept in bg's or arena but works good enough once you remember like toonx is F3