We have some very large classes in our university with a large amount of sections that we crosslist into one course such as 100/200 level Chemistry, Physics or Speech classes. Said course would have a series of instructor who are each responsible for their own sections. An instructor could be responsible for 4 sections totaling 200 students but would only like to export the grades and work on the students in section A (50ish students). That is not currently possible as exporting the gradebook export everyone in the sections you are assigned to at the very best and export everyone in all the section if the flag isn't set so that they can only see the students in their section.
When instructors select a specific section in their gradebook to view and Canvas shows them that section and its students in the gradebook. The expected behavior would be for the Export button to export the dataset that is being displayed at that point. Which is just that one section's gradebook. That is currently not possible.
To take this idea one step further, it would be ideal to allow instructors to check the section of the course that they would like to export. An instructor could check Section A, C, D and F out of Section A-G and only export those 4 sections to a csv file.
Rob Ditto mentioned on the last idea post that this used to be possible at one point. Hopefully this idea could be re-added.