A dummy transistor and a field effect transistor are arranged in a second direction. The method converts the page into a semantic thumbnail, which preserves the overall appearance of the page and displays readable text segments that enable a user to identify main areas of the page. These options and functions include a wide variety of settings, security features, and the ability to manipulate test definitions and test data. Hydraulic or pneumatic cylinders are used for extension and retraction of the arm rather than to support the tool. One of the arms is secured to the frame and the tool is connected to one of the other arms.