The Camera window may contain links to other cameras (see Adding links to other cameras to the Camera Window).
When you click a link, the corresponding camera is selected, and the Camera window expands.
If a linked camera is not present on the currently selected layout, a layout containing the required camera is selected. If there are multiple layouts containing the required camera, the layout with the least number of windows is selected.
If a linked camera is not present on any layouts, a temporary layout is selected that will be automatically deleted after you proceed to another layout.