Once again, thank you for your involvement.
I participate regularly to Mapathon. The last one was this one : https://www.rejouisciences.uliege.be/cms/c_20394027/fr/mapathon-2025
But I know their is still place for huge improvement for my ability to map.
Take care

Hello Gregory Peony,
Thank you for your advises.
You'r right, I simply use ID.
But I have heard from JOSM, en installed it on Ubuntu Desktop.
But I have to learn how to work with it.
Your comment is not lost.
I'm in the process to review my tasks (thanks for splitting them).
I do hope that my work will deserve a completion status. But I must admit that, according to the satellite pictures (en also when I'm comparing, with the bings one, I have many doubts about what I see.
Wall and shadow ? Building ? Tree ? Round house ? Not easy, but I do my best...

Thank you Gregory Peony.
WILCO.
(I was preferring removing the stuff to be able to quickly redraw them; it's easier to me, but i will comply and use this tool. Tank's for your advice).