Buttons for moving objects

Hi all,
the shortcuts of the tutorial are not available on a foreign keyboard - which is a pity as it may become very complicated to arrange objects. For example (tutorial, No 14):
On an English keyboard you can bring the tree-object from the back to the front with Ctrl + ]
On a German keyboard you would need these buttons: shift + command + option + 6 - which is quite artistic for the fingers!
To avoid this it would be a great help to have 4 buttons somewhere on top for changing the position of objects with one step or completely back or forth.
Comments
I guess an option to customize shortcuts in general would be ideal? What do you think?
For now, you can do that by navigating the menus as seen on the image: