In case you didn't already know, magit exposes `add -p` functionality in a very emacs-y way: it leverages the region concept by making it so that if you select

In case you didn't already know, magit exposes `add -p` functionality in a very emacs-y way: it leverages the region concept by making it so that if you select the part of a diff you want to stage in your magit-status buffer and then press s it will only stage that region.