Our University recently moved to the new TII integration as well from the old external tool integration. We actually chose to disable most TII features aside from the Plagiarism review functionality so that it limits confusion among our student population.
Here is a screenshot of the TII integration right in the Canvas assignment page. So no more having to create a Canvas assignment then use the external tool to side-load the TII framework and thus be handed over to TII's system. This caused a decent amount of confusion for our students and faculty when they were managing assignments.

We also disabled features such as PeerMark to avoid confusion between courses. This way you don't have faculty grading in PeerMark in one course then in the next course everything is being completed in SpeedGrader. Really we couldn't find a solid reason to keep PeerMark being SpeedGrader is available. So in essence when the originality report is clicked on you get the results and can view and tweak the settings as a faculty, however the PeerMark functionality is disabled and requires the faculty to complete any markups in SpeedGrader. We have found this creates an intuitive user experience for our student body.

Hope this helps to shed some light.
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.