I would like to be able to create a sub-group of students (like the "Everyone" group) so that I could assign to the sub group rather than having to type in individual names in the assign to field.  This would not be for group assignments so the group function does not work for this.  For example I could like to create a sub-group of my virtual students and assign them an assignment or quiz using the group name "Virtual" rather than typing in all 28 names individually.