Share highlights with a group

Hello, is there a way to share the highlights in my documents with a group? If I highlight a document in the group, everyone can see the highlights. However, if I highlight it in my library and add it to the group afterwards, the highlights are only visible to me. I understand why this is useful to keep your notes private, but is there a possibility to share them? The only way I can think of right now is to export the notes to the pdf and add the highlighted pdf to the group. However, then the highlightings can't be changed and you can only export one pdf at a time, so that takes quite some time. Any ideas how to solve my problem? Katrin