Ganging is a term usually associated with faders on light control desks or audio mixing consoles. A typical way to indicate ganging in digital audio interfaces

Ganging is a term usually associated with faders on light control desks or audio mixing consoles. A typical way to indicate ganging in digital audio interfaces is by coloring the knows in the same color (usually very distinct from the rest of the interface) or by displaying a horizontal line that literally connects them. For me the astounding part here is the complete lack of visual feedback of the end result. Sure I have limited nautical experience, but from sailing I know ships are a lot about force vectors. I would have imagined a ship of that class has a clever and intuitive way of displaying the forces acting on it (and the forces applied by its various parts). This could literally be 3 horizontal bars with a 0 in the center. If the bar is filled to the left that bar makes you go left, if your bar is filled to the right, that is where it makes you go and if it is centered, you go to the center. One bar describes the resulting turning direction of both engines, one the turning direction as indicated by the rudder and one the sum of both. Sure there is then some ambiguity about what that means when you go backwards etc, but hey, one look at that would have told you "engine makes us go left".