Named-user license keys behave like floating license keys except that you can specify a user for each license key. You assign a user to a key by creating a file rational.opt. This options file locks the floating license key to the user; so that the user can use Rational® Purify®, Rational Quantify®, or Rational PureCoverage® on multiple systems.
Follow the procedures explained in Installing the server software and floating license keys. The only difference that you will see is the script will prompt you for user names and create the file rational.opt for you.