In this context you are using 'group' to men 'group of students', so it doesn't make sense to say 'Specify the components that are in each group'. It should probably say "Specify the components that are shown to each group." I am nervous that the term group is going to get very confusing in this document, but maybe the concept inside the group configuration is really the same, i.e. a group configuration describes how to allocate students into groups.