@ed19 so I tried your technique, and it worked perfectly well for my H2s. Thanks a lot !
Unfortunately for my H3s, I need to get the corresponding H2 index to be shure not to delete an H3 for another H2 section, and this is the topic of my another post.
I will call it solution since the main topic of the post found it, but i’d be glad to see you help me a little more on this !