In vMix we have two “real” cameras and many “virtual” cameras that will move the real cameras to point at the pulpit, lectern, etc. The real cameras are called Right Camera and Center Camera. The virtual cameras have descriptive names for what they point at like Center Pulpit or Right Communion Table. Selecting a virtual camera into the Preview or Live windows will move the real camera to that preset position.
There is already a virtual camera input for every shot you need.
The virtual inputs Center Slides and Right Slides combine the PowerPoint slides from the iMac with the exact center of the current camera view. If you have Right Lectern in the Live Window and click on Right Slides you'll see the Preview Window contain the PowerPoint slides and the lectern.
If for whatever reason you need to adjust the camera while viewing slides it gets a little complicated. The camera cannot be controlled while using a composite view like slides + camera. Instead you need to move the Right Slides to the Live Window, and then move the Right Camera input into the Preview Window. Now you can issue commands for the right camera to move and the movement will also be shown in the Right Slides window.
You can move the camera in vMix using the number keypad. In almost all circumstances, don't move the camera while it is “live”. But when you need to here's how.
vMix allows using keys as Shortcuts to perform functions. Jason has bound the following Shortcuts on the number pad to send commands to the camera that is in the Preview Window.