You can create groups of students within your classes to differentiate the Buncees you send as assignments! See how below.
Click on the class that you would like to create groups for in the 'Classes' tab of your dashboard.
Click on the 'Students' tab to see a list of all the students in your class.
Select 'Edit Group' in the top left corner of the list of students in your class.
Click 'New Group' in the Group Editor box and name the group you would like to create.
Select the students from the right side of the screen who you would like to add to a group and their names will be highlighted.
Click and drag the list of students into the group, then click 'Close'.