Viewing groups at the account-level is similar to viewing groups at the course-level. The groups created at the account-level will still show up in the Courses & Groups menu in the Global Navigation menu. Setting up groups for the purposes of collaboration is better handled through building courses or groups under the appropriate sub-account level, since you can't assign non-admins to sub-accounts. You will need to create group sets and groups in your account.
Select the Managed Account in the Courses & Groups drop-down menu.
In Account Settings, click the Users link.
View User Groups
Find and click the View User Groups button.
View the different Group Sets. Click the group’s name to view the Group Homepage. Click the + icon to search and add users to groups.
Note: Once users have been added, you can use the drag and drop feature to re-assign users to another group.