Most Futaba radios have a formerly secret service menu implemented into their firmware. This menu was designed for transmitter testing and servicing, but also allows a degree of radio customization.

One of the greatest features available through the service menu is the ability to customize the toggle switches (switch A through to switch H). In fact any combination is possible including the ability to swap switches such as Idle-Up and Thro-Hold or any other pair. This also makes possible the installation of 3-position switches to any 9Z radio allowing an identical switch configuration with the latest 9Z WC2.

Another nice things you may do with the service menu is the calibration of joysticks and recovery of forgotten passwords.