When an instructor is asking Canvas to automatically create groups and restrict the members by section, it is desirable to be able to specify which sections to include.
In our instance of Canvas, instructors of large courses have a large number of discussion sections, and 1 large lecture section in their courses. Students are enrolled in both the lecture section and in one of the discussion sections. Currently Canvas does not have a way to eliminate consideration of membership in the Lecture section, or a way to divide the members of a specific section into groups. Instructors of large classes have no option for how to create groups that restrict members to a specific section, and there is no easy way within Canvas to see the information needed in order to manually assign the groups.