This is in our current firmware for the PT-JOY-G3 & HC-JOY-G3 joystick controllers.
The new firmware includes a number of new updates for the PT-JOY-G3 such as the following:
Ability to invert control at the joystick from the joysticks OSD
Ability to utilize UDP or TCP for control of cameras
Ability to use custom defined TCP / UDP ports for control of cameras
Ability to push and hold 'ESC' to lock the joystick; simply press and hold 'ESC' again to release
PTZOptics default ports: TCP (5678) or UDP (1259)
To get this firmware simply reach out to firstname.lastname@example.org with the serial number of your joystick controller and they'll be happy to supply you with the latest and greatest firmware.
If you have any questions or suggestions in the future please don't hesitate to come back.