Mark property/properties as wrong syntax if number of parameters incorrect

I see that people often make the mistake of entering (or autocompleting) property: "x,y" (instead of properties: "x,y") in the editor - this unfortunately is not marked as an error and is hard to track down for QML newbies. Is there a possibility to make this more apparent ? (have a little more smarts in the error checker marking or changing the default to "properties" ?)