Upon logging into Oliver, one comes to this screen:
Click Circulation Desk:
This opens a new window like this:
At this point, ask the student for their student number, and type it into the bar at the top. Ensure the cursor is blinking in the bar, before you type; it can deselect at random sometimes.
Once you're into the student's Oliver account, ensure the cursor is blinking in the top bar again and either:
...
b) if the lock has a label on it, scan the barcode on the label
The student now has that lock assigned to them. When finished with the student, click the green 'Finish' button just above their name.