Enable LockDown Browser Monitor in Canvas Exams

You can enable LockDown Browser (LDB) in the test by checking the box "require Respondus LockDown Browser":

Then, you click on Respondus LockDown Browser in the left side menu:

In the screen that comes up, you click the little down carat menu to the left of the test that you want to modify the LDB settings for (and click Settings):

Then, you can click the circle to the left of "Require Respondus Monitor for this Exam" and Save + Close: