Create or configure an Assignment activity with marking workflow and marker allocation enabled. Ensure the course has users enrolled as markers (non-editing teacher or teacher) and students. In the assignment settings go to "Grade" and set "User marking workflow" and "User marking allocation" to yes. In the Assignment activity, view all submissions, choose a student and press their Grade button. From the Allocated marker list choose a marker, and from the Marking workflow state list choose 'In Marking'. Save changes, then choose the 'View all submissions' link. On the grading table page, set the basic filter to 'Not submitted', the workflow filter to 'In Marking', and for the marker filter choose the marker allocated to the student. Choose the 'Grade' button for the student to open the grading app page. Once the page is fully loaded, open the filters options popup. Observe the filters are set as in step 3. The filters are directly located underneath the change user dropdown. Set each filter to a new value except 'No filter', then click 'View all submissions' to return to the grading table. Observe the filters remain set as they were in step 6. Confirm behaviour for other combinations of the marking allocation and marking workflow settings as appropriate. i.e. Marking workflow off, Marking workflow on and marker allocation off.