Where in the world is the option to rotate or twist the camera in the new version of MatterControl? I am talking about the ability to twist the camera like a barrel roll. Currently, if you are looking at the Front of the object and then rotate the camera to the side, the x-axis of the camera is now off-kilter with the plane of the print bed. It is very difficult to get it lined back up.

In the prior version of the software I believe you could hold ctrl+right click (or maybe just right click) to twist the camera.