Can't get mouseover macro working

[FeathersForever]

Am trying to sort out some mouseover healing macros. Can't seem to get it working. have stripped it right back to the basics:

/cast [target=mouseover] Healing Wave

But still no go.

Any help? I may be missing something obvious.

[essedge]

might need to download one of the macro mods, mouseover stuff could've been added later

[zerf]

1.12 macro API doesn't have [target=xxx] support.

Try Classic Mouseover addon, that adds this functionality for popular unitframes:
http://addons.us.to/addon/classic-mouseover

[LYQ]

you can try

/run TargetUnit("mouseover")
/cast spellname
/run TargetLastTarget()

[FeathersForever]

Awesome thanks guys!