Cheese preferential webcam

Wolfman, good Cheese manual. I was looking for it.
I was already changing the camera in ‘Preferences’, but at each Cheese opening, the laptop camera showed.
In dconf-editor ( org/gnome/Cheese) changed field ‘camera’ to ‘USB camera’ but had no success.
Edited org.gnome.Cheese.gschema.xml (in usr/share/glib-2.0/shemas) and changed:

Camera device string indicator
The path to the device node which points to the camera, for example /dev/video0
‘’

to:

Camera device string indicator
The path to the device node which points to the camera, for example …
‘/dev/video0’
</key

/dev/video0 is the usb webcam I want to be the default one
Ran ‘sudo glib-compile-schemas /usr/share/glib-2.0/schemas’, with no errors. Rebooted, No success.
In dconf-editor the field ‘camera’ is the cam that is being displayed in the moment by Cheese but /dev/video0 appears as defaut.
Any help?