@ Stefan Alas I am not yet a blender user only friends with Blender French Gurus! :)
(not genitically modifyed for that for the moment...i am waiting a more fluent friendly interface...maybe in 3 years ...!)
The addons above are on the good way!

But sure that is the Prog of the day for no price!

I open it some times as betweener progs for convert some file but not more presently :)