How can I randomize questions within a test section

I can randomize questions when they are all contained in Test, but I have 8 modules in my course. I have a pool of 10 questions for each module. I created 8 test sections, one for each module, and input the 10 questions for each test section. I need to be able to randomize the questions in each test section so that the learner is presented with 5 questions in each. I also need a cumulative score at the end of the entire test. (8 sections, 5 questions each, 40 total questions to be included in score). How can I do this?

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