Seeking advice on a single button for dps/hold shiftbutton+same key = all cast heal on that target.

[newbox]

/cast [noharm, mod:shift]Smite;[harm, nomod:shift]Flash Heal


or something similar to that (sorry if it's wrong, I'm at work)

I tried some varients but didnt work. ty though.

Here is what my normal lightning bolt macro looks like, which works like a charm when i got a hostile targeted, then all fire at the target:

/cast [target=targettarget, harm] [] Lightning Bolt


Only wished i could "advance" it so i can hold down shift, target friendly + press same button so everyone start healing that spesifik target. Im starting to really lack keys so thats why i would like to make another 2 in 1 button.