## Printer Device Driver

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### Test Case Selection

Once the test groups are selected, the individual test cases can be selected from the Test Cases section of the PTT Test Case Selection dialog panel. Test cases can be selected and de-selected individually, or groups of test cases can be selected with the match patterns provided using the Add Match and Delete Match push buttons.

Note: Test cases must be de-selected specifically unless the user's test group is de-selected. When that happens, all test cases are de-selected and made unavailable. The PTT never de-selects a test case automatically.