Randomizing the Test

Hello,

I have a test with 7 questions in it, and I want to have those questions randomized. My test questions are in a Test Section, so on the Properties of the Test Section, under the Section Content tab, I check the Random Selection of Pages, and enter 7, in the number of pages to be randomized. When I go to publish the course, I get the following error message "A Submit Test action is not valid witin a test/test section in random mode."

How would I go about making my test questions randomized?