How do I use "Select all" to put students in or out of test in Co:Writer?

Steps to use "Select all" to turn on test mode.

1.  Click on the "Select all" box.
2. All students on that page will be selected.
3. If you want to select all Students you can see in the license/subscription. Click on Select all "number" students.
4.  Click on the Padlock to the right of the checkbox*
5.  Select your Test Mode.
6.  Select "Turn On".

Steps to use "Select all" to turn off test mode.

1.  Click in the "Select all" box.
2. All students on that page will be selected.
3. If you want to select all Students you can see in the license/subscription. Click on Select all "number" students.
4.  Click on the Padlock to the right of the checkbox.
5.  Select "Turn Off ".

*If the padlock shows up as  partially grey and white then at least one selected student has a test mode turned on.  

You will need to either turn test mode off then back on to clear the student(s) that are already in test mode.

or

Un-check the students that are already in test mode before you set test mode for all the selected students.