In this free video tutorial, Mike Thornton covers in detail how to setup and use each of the instruments that only come in RTW Mastering Tools. These are the Vectorscope Instrument, Surround Sound Analyzer Instrument, Real Time Analyzer Instrument, and the multi-channel version of the Correlator instrument as Loudness Tools only has a stereo Correlator Instrument. 

There also videos that cover the common features of both Loudness Tools and Mastering Tools and another video which covers the instruments that come in both RTW Loudness Tools and RTW Mastering Tools.

If you want to learn more about general loudness principles then Mike Thornton has produced a detailed tutorial series Understanding Loudness covering the concepts behind the new loudness workflows as well as tips and tricks to help you deliver loudness compliant content.