ok this feature has been implemented as a core option. Its setup for real arcade joysticks its the last option in the options menu. Please let me know how any of you get on with it. With controllers and arcade joysticks. All you need to do is update from source

I have just 3d printed an octagonal plate to try, it feels nice,
I am looking into 3d printing a plate that uses a 5v servo to change from 4 to 8 way. I have an arduino in the cabinet doing other things so could use it to control the servo.