User blog comment:SEOkitten/Using Keywords Without Stuffing or Spamming/@comment-4129195-20150928204158/@comment-957747-20150929171552

MediaWiki:Pagetitle should be available for editng once Thurday's release is pushed.

As mentioned above, MediaWiki:Pagetitle-view-mainpage is slightly different and ties in with the Hero tool. As such, it's not currently a priority.