After the tilt Servo I could not even add the servo Pan. I added a servo to the base of the tilt webcam and modified the Arduino software Yun and HTML page.
I fixed the servo in an extremely professional way with a kitchen ties.
The Pan servo is linked to the pin number 6.
Clicking on the black-blue grid is possible to move pan-tilt servos toghether.
This is a short video of the "Kitchen Tray Project".
All project files are here.