1. Make sure you are viewing the test session with your students.  Use this tutorial to see how to do that.

2. Find and click selectAll

3. Find and and click down arrow

4. Click Resume Student Tests

5. Click Start

6. Click select All. This will select all (and only) students who need their tests resumed.

7. Click Resume

8. Click Exit Tasks

9. That's it. You're done.

Interactive tutorial