It will collect/relink all selected objects bitmaps to the chosen folder, even if the bitmaps are just flagged "found" in the asset tracker, and it will save your selected objects to that same folder. If you don't want to change your scene bitmap paths, Save it before applying the script then reload the scene.
If path are missing or unsolved those maps will keep their missing or unsolved path, it will be easier to try to find them.
