Here comes a long-awaited feature for you who let your students play assignments on Helpfulgames. When a class or group gets a new student, the teacher has previously had to add that student to all ongoing and upcoming assignments that the group has. Now you can choose whether new students will automatically receive ongoing and future assignments when creating an assignment. In order for this feature to apply to existing assignments, you must edit the assignments as a teacher, and select that this synchronization is to be done and also for which groups it should apply.
Read more on the help page for assignments.