Can this macro be made?

[Elvenbane-veknilash (Elvenbane)]

@Elvenbane-veknilash

CC Macro

Shift: Clear Focus
Alt: Set/Cast on Focus
Default: Cast on Target

#showtooltip
/focus [mod:alt,@focus,dead] [mod:alt,@focus,noexists]
/clearfocus [@focus,dead] [mod:alt,@focus,noexists] [mod:shift]
/cast [mod:alt,@focus,exists] [] SPELL

#showtooltip
/focus [mod:alt,@focus,dead] [mod:alt,@focus,noexists]
/clearfocus [@focus,dead] [mod:alt,@focus,noexists] [mod:shift]
/cast [mod:alt,@focus,exists] [] Thoughtsteal