Collaborative family tree - Share trees to other Google accounts for editing

[jackuars7]

I am not sure if this feature exists. I obviously do not know everyone within my family tree or my extended family tree. It would be useful if I could share the created tree with someone else so that person can help me build the members of their part of the tree. For instance, you could add a contact/email ID under the Facts section and then share the tree with that person for them to edit. This will help in continuously building the family tree when sharing it with the right person.