We are a secondary school that uses SIS import to get students into Canvas courses. I am running a whole year unit/course for the next 10 weeks where year 7 students, self select a class/course of which they have 3 options. A separate people/grouping has been set up for them to join and they have successfully done that. I would now like to mark the attendance of these 3 groups which currently do not exist on out imported timetable structure and therefore not SIS imported into Canvas. Is there a way to create a class for these three groups so that their rolls can be marked in Canvas?