When you move your cameras to other positions, you could set the "duration" property of the "move camera" function to zero seconds if you want the camera to move to the next scene instantly.
If you want the camera to rotate around "the scene", you could use the "turn camera" function and under the "more" menu, set the "asSeenBy" property to the object that you want the camera to rotate around (such as the center object of the scene.)
You could change the "style" of the camera's methods under the "more" menu to "abrupt" if you want the camera to move smoothly (I know it sounds counter-intuitive, but it makes sense.)
If you want the camera to "follow" an object, go to the camera's properties and set the "vehicle" property to the object that you want the camera to follow.
This is all the advice on camera's I can think of right now. Let me know if you have any questions.