It would be great to take a leaf from lots of other software and have an invisible or NULL object that can be used to make the camera position move, but doesn't render in the video.
You CAN do it at the moment using blank squares but it's not great and you can't see them on screen or in the timeline.
You can use any element that is not located on the visible canvas, or any element with its opacity set to zero. For example, type the word "null" as a text element and place it off the visible canvas.
Get it, but it's another step. Add item, type text, make transparent. A camera focus null would be even better :)