You never pick and drop `a.f' but either `a' or `f'. They are both features. In both cases, they come with the class that defined the feature. So when dropping `f' in the context tool or the watch tool, we receive the same information a class and a feature. We actually don't know that it is a qualified call or not.

I guess in future releases, one could select the text, then the context menu can have an entry to send the selected text into the watch tool.