Unless my memory fails me badly, once upon a time the Scala plug-in would highlight all the expressions in a class (or trait) that were part of the constructor when you put the insertion point (and here my memory is definitely foggy) in the class name or in the class or trait keyword … or somewhere in the class / trait header, anyway.
For several releases now, I have been unable to find / activate this functionality. Does it still exist? If so, how do I access it? If not, why not? I found it quite useful.