This is how I do healing (I have 1x unholy, 3x frost, 1x resto druid)

keys 1-5 (I use a custom keyboard so the keys are just an example)

/castsequence [nomod, target=toona] reset=7 Rejuvenation, Lifebloom, Lifebloom, Lifebloom, Regrowth
/cast [mod:alt, target=toona] Swiftmend
/cast [mod:shift, target=toona] Nature's Swiftness
/cast [mod:shift, target=toona] Healing Touch
/cast [mod:ctrl, target=toona,nodead,help] Regrowth
/cast [mod:ctrl, target=toona,dead,help] Rebirth

etc etc for toonb-toone