[Q] Mass change the object access Android Studio

I've been using Android Studio for a while, and it's one of the (if not the) most powerful IDE's I've used.
There is one thing I can't find though.

If you have a list like this:

Code:

---

private String username = null;
    private String userAvatarURL = null;
    private String bio = null;
    private String birhtdate = null;
    private String gender = null;
    private String location = null;
    private String twitter = null;
    private String externalURL = null;
    private String urlIFLprofile = null;
    private String urlIFLwallpapers = null;
    private List<Integer> wallpaperIdArray = null;

---

How do you change private to public without changing them one by one?

Thanks for the tip!

Tim