In order to create collaborative groups in ArcGIS Online you must be at least a facilitator level permission in ArcGIS Online. For more information on how to log in and create an account in ArcGIS Online see this article: https://request.fandm.edu/TDClient/299/Portal/KB/ArticleDet?ID=18726
To make a request to be a facilitator please reach out to one of the individuals here:
Once you are a facilitator you can sign in and go to the Groups tab at the top.
- Create a group
- Add the settings that allow group members to contribute to projects
- Invite members
Now if you view members you should see all the members of the group:
All the members of the group should be able to contribute to any project in the group!