That has fixed the issue of ONLY the LEFT Control key being recognised, so I have changed the key to be that Left Ctrl key and that recognises it in the game. I prefer to play such games via the keyboard, as getting a joystick out for such a desktop type game seems unnecessary, though I'm sure there are plenty who just want to use a joystick in preference to the keyboard, but thanks for the suggestion, and glad the optional key modifier is in the setup section. Nice !