Hi, all.
The keyboard shortcuts provided for organizing objects from front to back cannot work on a French keyboard. The reason for this is that in French-speaking countries, keyboards are much more complete than in English-speaking countries. The characters [ and ] are then obtained by the combination of the keys :
[ = Alt Gr + 5
] = Alt Gr + °
One solution is to use the key combinations (also much more logical):
Object backwards (vers l'arrière) = Ctrl + Flèche bas
Object forwards (vers l'avant) = Ctrl + Flèche haut
Object all the way back (derrière tout) = Ctrl + Shift +Flèche bas
Object all the way forward (devant tout) = Ctrl + Shift + Flèche haut
Have enjoy.