In the Course Administration bar, select "Participants".

On the Participants page, select "Groups" from the dropdown box.

A view of all the groups in the course can be seen.

Enrolled users
Enrolment methods
Groups
Groupings
Overview
Permissions
Check permissions

Tip! If you wish, enter an Enrolment key. In this way, you can restrict access to the course to users who know the key. Entering the key will admit the user to the course and automatically make them a member of this group. (This will only take effect if the course has been created as a Self-Enrolment Course.)

If you wish, you can add an identifying picture for the group, which you can choose to Hide or display.

Click "Save changes" to return to the Participants page.

Select names from the potential members list. (Click and drag to select multiple adjacent participants or hold Ctrl whilst clicking participants to select multiple individual users.)