Help with ,,Windshear" macro

[Boonzorsx]

Hai to all
Guys i need some help with a ,,Windshear" macro ( both pvp and pve purposes )
My idea for the macro is something like this:
( lets presume that my ,,Windshear" spell is on keybind 1 )
-Press 1 to cast Windshear on your current target
-Press Modifier( ex. Shift ) + 1 to cast on your focus
I know that a macro like that already exists, but i never managed to find out how to make it...so here is where YOU come in

[Deralte]

/cast [@focus; harm; nodead; mod:shift] Wind Shear; Wind Shear

Should work.

[Kairu]

/cast [@focus; harm; nodead; mod:shift] Wind Shear; Wind Shear

Should work.

pretty sure it should be , instead of ; inside the braces, not sure if it matters though (I've always used , )

/cast [@focus, harm, nodead, mod:shift] Wind Shear; Wind Shear

[perera]

There's no reason to occupy 2 buttons on you bars when you can do the same with one... what kairu posted should work just fine.

[Deralte]

pretty sure it should be , instead of ; inside the braces, not sure if it matters though (I've always used , )

Thought i missed something. Thanks