Hello, problems with the galleries and thumbnails that integrate automatically the gallery (or other pictures that we don't want to display in the gallery).
Luckily, with
[gallery exclude = "id-of-picture"]
we can eliminate them from the gallery.
Problem: it is very difficult to find the ID of the thumbnail of a post.
Solution: display the id of the picture after the informations, like it:
Filename: blabla
File Type: blabla
Date Online: blabla
Size: blabla
ID: id-of-picture !!!