To activate the reference face database editing, do the following:

1. Go to the Interfaces tab in the System settings dialog window (1).
2. Select the Face recognition and search object in the objects tree (2).
   
3. Set the Allow face database editing checkbox (3).
4. Click Apply button to save changes (4).

Activation of reference face database editing function is now complete.

As a result, the Face database tab in the Face recognition and search interface window will be available, and it will be possible to add captured faces to the database.