Add an assignment protection rule to a label

To disable changing exercises in an assignment, you can add an assignment protection rule to the question bank labels. When enabling this option on a label, no changes can be made to assignments that have this label. 

To add an assignment protection rule, follow the steps below.

1. Click on your question bank or use the search bar in the Question banks-section. 
2. Click Settings in the menu at the top.
3. Click Assignments in the menu at the left.
4. Click Edit.
5. Check the box Disable changing exercises.
6. Click Save.