In Pilot mode, you can fly virtual aircraft, from a single plane up to several aircraft at once.  The Aircraft Ctrl list tells you which aircraft you have control over.  By clicking on on the aircraft in this list, you are taken into that airplane's cockpit, where you interact with your instruments as you would in a real airplane.

Some info and tips for using Pilot Mode:

• For all entry fields: magenta = engaged, yellow = estimated current, and white = existing or pre-selected
          (NOTE: the MCP 777 and the MCP 757 do not follow this color scheme)
   
• For all Aircraft lists:  When the selected aircraft's body type and flight category are magenta, this indicates the aircraft is either out of VNAV or LNAV, or both (In other words, the aircraft is being commanded by the MCP)
   
• When typing directly in fields, make sure to hit the "enter" key on your keyboard, or your command won't get added into the system
   
• The concept of free flight is currently being investigated by researchers throughout the world.  The current National Airspace System (NAS) utilizes Air Traffic Controllers to safely direct air traffic.  The free flight concept provides aircraft pilots with more autonomy and flexibility (potentially improving flight efficiency) in managing their own routes, but also includes the added responsibility for aircraft pilots to maintain some of their own safety.
   
• The Airspace:

The current MACS database uses the Fort Worth Center (ZFW) airspace, located in the United States.

Within ZFW, the MACS database uses the Dallas-Fort Worth International airport as the main destination.  The image above highlights the airspace sectors used to manage air traffic in to and out of the Dallas-Fort Worth International airport.