One of the great features Canvas offers our teachers is its ability to allow differentiated assignments within a course. As we move forward with grade passback with PowerTeacherPro (PTP), we find that PTP doesn't always recognize assignments that are assigned to small groups within the course. We have found that an easy work around is to create sections in your course for students that may need differentiation. Students will not know they have been added to a different course. Here is a quick tutorial on how to add sections:
It is recommended that you create sections, rather than groups, as PTP does not recognize the Canvas groups.