User blog comment:Корво-аттано "Номад" :-)/I have a question. How do you make those screenshots?/@comment-16533050-20140828094626/@comment-16533050-20140828100223

Happy to help.

In this conversation: http://dishonored.wikia.com/wiki/Thread:40148, she says she turned the gravity off and 'floated' over the wall.

I'm on an X-Box 360, so I don't know how she did it.

She could probably explain it better.