Write out a line of macros

/ac "Cure" <p0>

replace "Cure" with whatever is your favoured spell and repeat through <p0> to <p7>

you are <p0> and party members are counting down from the top of the list

you can also add

/aoe on

to the macro line if you want


It's not a magic wand but it will keep your party alive if you're having trouble targeting them fast enough.