Set display style for names . . . (View menu, PureCoverage Viewer)

Opens the Name style settings dialog box, allowing you to specify how to display directory names, pathnames, filenames, and function names in the Viewer. For C++ applications, you can choose to suppress class names, argument lists, or operator prefixes.

You can also specify a minimum width for the names column, which the Viewer maintains even when you make the Viewer narrower.