Hi Zulq,

> You can restrict the scope of refactorings using the "open environment" 
> menu item in the class context menu. You may have seen it above "refactor 
> class", "refactor class variable", etc.

Fantastic! Seems slightly buggy (I got several #doesNotUnderstand: 
#includesCategory) but I can see this becoming my default browser.

Since re-factoring operations are scoped in this browser, I tried 
Senders/Implementors in the same scoped browser and found them global again 
(at least I could not find a way). Shouldn't all of these be consistently 
scoped?

Thanks,

Sophie