Who can view a student's activity?
Organization admins and the assignment chat's owners (instructors). Students cannot view their own activity log.
Are group assignments supported?
Not at this time. Group assignments aren't currently supported for external tools like Pronto.
Can teaching assistants grade using the Pronto activity view?
Not at this time. Only users with a "teacher" role will be able to grade these external assignments.
What triggers a submission in SpeedGrader?
The first time a student sends a message, that triggers a submission in SpeedGrader