As an instructor, you can manually add students to a group in both published and unpublished courses.
Open Group Set
Click the Settings icon , and then click the View User Groups link . Or click an existing group set .
Confirm you have created all the groups for this group set. If you need more groups, you can create additional groups manually.
Manually Assign via Drag and Drop
In the Unassigned Students section, find the student you want to add to a group . Click the student's name and drag it to the group .
Manually Assign via Add Icon
You can also click the student name add icon  and select the group name .
Canvas will update the member count for that group to show the student has been added .
Continue to manually add students to groups until all students have been added.
To expand the group and view all group members, click the arrow icon  next to the group name.
You can also move students between groups if necessary.