Cameras are important part of every visualization software, as they specify how a 3D scene is displayed on a 2D viewport. Each view has its own default camera, which can not be accessed through Object Manager. All properties of user cameras can be modified in Attribute Manager.
You can create any number of cameras, from which you can view and render the scene. When a new camera is created, it appears as the first item in Object Manager and inherits all its parameters from current camera. Is is displayed in the viewport as a green outline.
Just like any other object, camera has its own coordinate system. It looks at the direction defined by Z axis.
To associate a camera with view so that it looks through it, you can do one of the following: