[da-x]

It's useful, but makes you wonder why they haven't taken it one step forward and allow you to edit the diff too while you're at it.

[u801e]

You could if you also have the output of git diff. Then you could stage and unstage hunks or parts of them using a combination of recountdiff and git apply --cached

[tomjakubowski]

That sounds positively radical. Like magit taken to its conclusion.