Ho Wow ! looks like a pretty good and stable solution !
Thx a lot for your proposition, I think it will help not only me !
Since I post my message on this forum, I succeeded to setting up a solution that’s work in my case but not realy stable. When I reach the final Milestone of my project , I will try to patch my script to implement this solution !
PS: sorry for my english, it’s not my native language, I hope I did not make lot of language mistakes)
PS2: I just check the post you linked bellow your reply, congratulations for your explications, very pedagogical approach !