The persons are added to this list upon detection.
You just double click on the detected face in the main form.
Add new known face
Enter the name of the person and that person with this face will be added to the known faces list and will be include in comparison for all detected faces in future.
You can easily update the face representing known person. Select that person in the control above and click on this button. The new face will be used for all future comparison, previous recognitions and detection won't be affected with this change.
