When I was shown this, and had its function described to me, I thought it was an imperfect design, but usable and logical, but that's because I hadn't been listening closely enough to the explanation. I showed it to a computer programmer and he managed too backfit a sort of logic to it, but I don't think he could have done so had I not told him the rules. So here's your turn.
The question is, given that the display above asks the pilot to make control inputs that will centre the green dot exactly on the crosshairs--I'll give you that much--what control inputs does it ask for as depicted? Give your answer in direction and relative magnitude of pitch, roll, yaw and/or speed. If you're not sure what those terms mean (and those who are not probably have a better chance of getting it right), just describe what you think it might be asking the pilot to do, in whatever terms make sense to you. As usual I ask any of you familiar with this particular instrument of guidance to recuse yourselves, or at least hide your knowledge in polite snickering.
I'll give you one more piece of information, although it would be incorrect to call it a 'hint,' and that is that sometimes the dot turns red.
le point - dot
la réticule - crosshairs
le lacet - yaw
le tangage - pitch
le roulis - roll
Pour mettre le point vert sur le centre de la réticule on doit ajuster le lacet et le tangage, ou peut être le roulis et la vitesse.