To Use the Modify Panel in Conjunction with a Camera Viewport

1. In any viewport, select the camera.
2. Right-click the Camera viewport to activate the viewport without deselecting the camera.

   The Camera viewport becomes active, but the camera is still selected in the other viewports.

3. Adjust the camera using its Parameters rollout on the Modify panel, or the viewport navigation buttons.

   The Camera viewport updates as the parameters are changed.