The Z-88 typically uses Outemu switches (Blue, Red, or Brown) which can be replaced without soldering using the included switch puller. Cable Management:
The Z-88 supports three connection modes (on wireless models) which are toggled via a switch on the back: E-yooso Z-88 Manual
You must rely on the hardware FN shortcuts from Part 3. For remapping on Mac, use Karabiner-Elements (external app). The Z-88 typically uses Outemu switches (Blue, Red,