And also a slight apology to WM, just in case he still watches, after all those years of me saying how the controls would be too complicated...
Well I realised it can be done, since the front two prop are twinned for rotation, as well as the rear two...
Thruster - controls the Pitch of the Blades, must work in reverse
rudder wheel - controls the rudder (
)
Thruster 1 - similar to Freedom 90, rotates the front prop set by around 60'
Thruster 2 - rotates the rear prop set by around 60'
Simple