Note When you create a group, you are automatically the group's administrator.
Once you have created a group, you can further customize it's settings. See Editing settings for a group in Wiggio [1] for more information
Links:
[1] http://staging.docs.d2l/en/editing--settings-for-group-in-wiggio
[2] http://staging.docs.d2l/en/taxonomy/term/3