I'm offering this tool FOR FREE: Download now!
The app looks like this:
This is the bookmarks panel of a file before running the tool on it. The first three bookmarks were created when the file was combined, and the last one was created manually. Notice they have different icons.
This is the same file, after being processed with the tool.
All bookmarks are now of the same kind.
If you find this tool useful and would like to donate, it's always appreciated!