Since SC doesn't allow you to bind something to multiple devices, this just isn't possible without using third-party tools. What makes the configuration 'complex'? I'm using dual sticks (Thrustmaster T16000Ms) and a throttle, where I want to have duplicate functionality on my throttle as I have on my sticks so I can cruise with just the right stick and the throttle, or I can use dual-sticks for precise/fast-paced flying. I've updated my guide on how I like to configure my input devices for complex scenarios using Star Citizen as an example.