First of all, sorry for my english I never learned it.
When we include a src file of javascript or we create a function (or object) well defined in the same file we are editing, i think is good appears another tab of objects (included object browser) for quickly add these functions, properties or objects to javascript code.
I think there is the key for use a lot of differents libraries (jquery, extJs or another) easily.
PLZ: If someone can write better than me my Idea, reply to the topic and i will replace my text with the new text.
Sorry again for my english.
Webuilder is the best!!