Do a little hack so recent activity block displays all activities regardless of the last course access (otherwise you'd need to have 4 simultaneous browser sessions for each user): edit function block_recent_activity::get_timestart() to always return the date in the past - comment everything except the first timestart declaration You'll have to do the same in course/recent.php (for testing the full report) keep the $lastlogin declaration and comment the lines below the declaration. For 2.4, the timestart lines to comment is in course/lib.php:print_recent_activity(). (still keep the declaration) Create a course, enrol 3 students, create 2 groups. Add a recent activity block and Activities block in the course. in the two groups, assign one student to both groups and two students to one different group each. create a forum with visible groups create several discussion topics, one in each group and one group-independed, add the same word to all topics (i.e. 'searchword') Login as each student and make sure you can see all posts in both block recent activity and recent activity report (master only) search forums by 'searchword', make sure all posts are found (master only) click on 'forums' in activity block, make sure that posts count is correct Change the forum group mode to separate groups Login as each student and make sure you can see only and all posts in your groups in both block recent activity and recent activity report (master only) search forums by 'searchword', make sure appropriate posts are found (master only) click on 'forums' in activity block, make sure that posts count is correct