I have two dps keys that both send the same command to DPS but send different sequences to the healer and then a "oh shit" button that has all healing toons heal the tank + healer toon pops cooldowns and heals tank:

trash dps/heal:
tank > tank spam
dps > dps spam
healer > Shield/Hot every 15 seconds or so (unleash weapon in the cast sequence)

boss dps/heal:
tank > tank spam
dps > dps spam
healer > shield/hot/heal/heal/heal/heal/HoT/heal/heal

OS:
tank > defensive cooldowns/ tank spam
dps > heal tank w/ fast heal
healer > fast heal, cooldowns + big heal

additionally I have click healing setup for when it's needed but I don't find myself using it nearly as much as i would if I were driving with the healer.