Connecting the optional Map Selection Switch allows the rider to switch between two different maps within the Power Commander. For Touring Bikes this could be used to switch between a "fuel economy map" for long rides and a "full performance map".
For Sport Bikes it could be used for applications such as "Dry Nitrous Oxide" kits to permit the user to make the fuel mixture richer when activating the system.
Additionally, if the Power Commander has an Ignition Module connected it can switch to a less aggressive timing map at the same time.