To record a video including the facecam option, follow these steps:

1. Click on the Videotab in the Ribbon
2. Set the desired parameters
3. Place whatever material you want to demonstrate under the scanner
4. Click on the Webcam icon  in the camera scanner toolbar to open a webcam window (your computer must be equipped with a webcam).
5. Drag & drop the webcam window on your screen where desired.
6. Place yourself or the person that will give explanations in front of the webcam
7. Click Record in the Ribbon. Demonstrate and explain. 
8. Click Stop when finished. A video file is created in the Output Folder panel.