Expand all elements using default browser hot keys

[aidandamerell]

In Firefox and Chrome, under the Inspector, it is possible to use opt+click on a node and expand all the child notes of the element. This is not possible via the dev tools tab however. It would be good to see this added in.

[bvaughn]

React DevTools has been rewritten and recently launched a new version 4 UI. The source code for this rewrite was done in a separate repository and now lives in the main React repo (github.com/facebook/react).

Because version 4 was a total rewrite, and all issues in this repository are related to the old version 3 of the extension, I am closing all issues in this repository. If you can still reproduce this issue, or believe this feature request is still relevant, please open a new issue in the React repo: https://github.com/facebook/react/issues/new?labels=Component:%20Developer%20Tools