The electrical and electronic aspects of model railroading is daunting for a great number of Model Railroading enthusiasts. Coincident with the maturation of DCC have come a large number of almost 'Plug and Play' devices for occupancy detection, turnout control and feedback, signaling and other layout automation capabilities. This MRRM feature addresses the burgeoning need for quickly understanding, installing, and using this automation capability without requiring an Electrical Engineer in the family or club.Layout Electronics and Wiring features include comprehensive Configuration Inventory Management.