If you think, this should be easier, talk to the creators of 3dx. Gizmo is the one, who can add this feature in the game. I can only use, what is possible with the game and try to make it usable.
There are tutorials, on how to use the tool, yes, in English. English is also not my native language, but as German would be readable by less people, that would be worse.
If you can't use the tool, I am sorry....