Disabling wind would technically be pointless. If it were not blowing, you would have to swing the rudder to move. If it were blowing in the wrong direction, you also wind up using the rudder to move. It would be no different either way. A more sensible request would be for Stranded Deep-style sailing, as others have described: put the wind at your back at all times, or otherwise move the boat as if it were. The Moder effect already gives you the former, so a full-time Moder effect would work. Or make Moder effect have no cooldown so you can just keep using it.