Thanks for comments ! That's help me.
Do you know difference since I have Read & I have See, or, i have understand ?
If we can't ask questions in this forum or if it's reserved for extremly very good professionals... Say me !
Sure i'm not a guy who ask questions without search answers before.
And... I am just a poor french. So... That's true, i don't understand very good every time in the english manuals.
Thanks Marco.
Guillaume Langlais.