The right-hand Grade rail is where a score is made and explained. This article reads it top to bottom: the control that decides how much of the assistant's work is drawn, the criterion cards, the explanation behind each score, and the filter that tames a busy margin.
Manual, Score, Feedback
At the top of the page sits the assist control. It is not a ladder; it is a manual base plus two independent capabilities, and either can be on without the other.

- Manual is your marks only. Both capabilities off: the rail shows the rubric with empty scores, the margin shows your own comments, and nothing you do is compared to anything.
- Score draws the assistant's proposed score on each criterion card, with its explanation. Turning it off clears the proposals from this paper; your own picks stay.
- Feedback draws the assistant's written observations in the margin. It is a view filter: turning it off hides them, turning it back on shows the same ones. Nothing is added or removed.
A paper can show scores without feedback (you want the number, you will write the words) or feedback without scores (you want the reading, you will grade by hand). The ▶ button beside the control runs the assistant; on a graded paper it becomes Re-grade this paper. See When a grade needs a second try.
The criterion cards
One card per criterion, in rubric order. On a levels criterion the card is the ladder: the levels from strongest to weakest, the one the assistant chose marked, and each level's value. Where a level pays a different number of points than its value, as when a ladder that tops out at 10 sits on a 15-point criterion, the card also shows what it pays (10 → 15 pt). Click another level to override; your pick wins and the total updates. A bar under the name shows where the score sits in the criterion's range. On a criterion scored by rules the card is a rules drawer instead; see Scoring a criterion with rules.
A card that the assistant was unsure about, or that landed on a level boundary, is marked for review, and Review N on the assignment page counts those across the class.
Where the points went
Every card carries two expanders.

Score explanation is the ledger. It lists each note that cost points, with its cost ("1 level down", "−2"), then the notes flagged without a cost, then the praise, plus Adjustment when a rule moved the score after the fact. Each line is a door: click it to jump to its card and passage. Your own comments count too: at the foot of every card, the check makes it praise, the flag makes it a note that costs nothing, and − and + set what it takes off. On a criterion scored by levels there is no − and +: a down arrow marks the comment as a reason the level is where it is, and it never changes the level itself. Nothing lit means it is feedback only, and it stays out of the ledger. Click a line (or its card) to select it, and the criterion's − and + change that note and the score together; the amount you changed pulses. Click it again, or press Esc, to let go. With nothing selected, − and + change only the score, and whatever the notes do not account for shows as a last line, Not explained or Credited back. Click Explain (or Place) and choose a note to give those points to, or New comment to write one for the whole paper. A changed line shows what it was, and a note you sent to the rubric keeps a Rubric tag with Open in rubric until the rubric flag is settled.
Look-fors shows the criterion's level descriptions, or its checklist, with a mark against each: met, partly met, or missed, as the assistant read the paper. This is the fastest way to see why a paper landed on Competent rather than Exemplary: the Exemplary description will carry a ~ or ✗ on the specific thing that was missing.
Filtering the margin
A graded paper can carry a dozen or more margin cards. The filter button at the top of the Comments column narrows them:

- Author: yours, the assistant's, or both.
- Student: comments the student will see, comments hidden from them, or both. Filtering to hidden is the quickest audit before release.
- By criterion: only the cards filed under one criterion, with a count on each; No criterion is the whole-document notes.
- Only: hover any row and choose Only to narrow to that one row without unchecking the others.
- Clear: back to every comment showing. The count at the top of the menu says where you are ("7 of 19 shown"), and the filter button stays marked while anything is held back.
Unticking a box hides those comments; unticking all of them shows nothing. The filter changes only what you see. Hidden-by-filter is not hidden-from-student; the eye decides that — on each card, or at the top of the column for everything showing at once. See Marking up a paper.
The foot of the rail
The total sits at the top of the Grade panel, in points and as a percentage. When a curve is set on the assignment, the top line shows the curved grade and a smaller line under it shows the rubric score before the curve and how many points the curve added. Confirm grade, at the bottom, makes the grade yours; a confirmed paper shows Confirmed with an Undo, and a released one shows Released to Canvas (or Released to student, when the assignment has no Canvas link) with an Undo of its own. Under the confirm button, Release to Canvas (or Release to student) sends one paper without waiting for the class; it stays grayed out until the grade is confirmed. See Releasing grades and reports.