Overleaf prevents them from refreshing the file, as they aren't the one who uploaded it. But considering it's a group zotero, is there a way to allow them to update it ? I have given them admin permission in the zotero group.

Also, in zotero, Can I have folders, in my own library, that I link to overleaf, or do I always have to create a group, even if I'm alone ?

Thanks in advance,
Julien