When a student submits a grade via the LTI 1.1 Outcomes Service or the LTI Advantage Assignment and Grade Services, is there a way to indicate a submission URL that the gradebook can direct a teacher to in order to grade a student's assignment?
Currently, the gradebook only opens the external tool with the linked resource. Canvas provides a `ext_outcome_data_values_accepted` in the LTI 1.1 launch parameters to indicate that outcomes can include a `resultData` value in the grade submission that contains an external URL (https://canvas.instructure.com/doc/api/file.assignment_tools.html#lti_advantage). They also provide an optional submission object "https://canvas.instructure.com/lti/submission" in the Assignment and Grade Service score request to add additional submission data as well (https://canvas.instructure.com/doc/api/score.html).
The Assignments and Grade Service spec also indicates a `GradebookResultMessage` that would cover this scenario as well (https://www.imsglobal.org/spec/lti-ags/v2p0#gradebookresultlaunch-message).
Does Moodle implement this submission URL handling in a different way?