Some delimiter that makes it a repeated argument to the relevant command, so people don't *have* to go through the "make a macro" interface if they're just trying to save time. Extra points for keeping non-formula text in the splits as well.
Ex: /r Acro 1d10+4>9, Fate 1d20
David (GM): Rolling Acro 1d10+4>9
(6)+4>9 = 1 successes
Rolling Fate 1d20
(13) = 13