Controls [Also In The Instruction]:

Ag1 - Arm Speed brakes (requires gear down)
Ag2-4 - Strobe/Landing/Cabin Lights
Ag5 - Open front left door (Requires not moving)
AG6 - Pushback
AG7 - Open left cargo door (Requires not moving)
AG8 - Engines, Nav/Taxi/Beacon lights

About boeing 757:

The Boeing 757 is an American narrow-body airliner designed and built by Boeing Commercial Airplanes. The then-named 7N7, a twinjet successor for the 727 (a trijet), received its first orders in August 1978. The prototype completed its maiden flight on February 19, 1982 and it was FAA certified on December 21, 1982. Eastern Air Lines placed the original 757-200 in commercial service on January 1, 1983. A package freighter (PF) variant entered service in September 1987 and a combi model in September 1988. The stretched 757-300 was launched in September 1996 and began service in March 1999. After 1,050 had been built for 54 customers, production ended in October 2004, while Boeing offered the largest 737 NG variants as a successor.

About DHL International Aviation ME:

DHL International Aviation ME (Correct name DHL Aviation EEMEA B.S.C. (C), and sometimes branded as SNAS/DHL) is a cargo airline based in Bahrain. It employs 265 airline professionals to dispatch, fly and maintain a fleet of Boeing 767 freighters operating under a Bahraini AOC. Their mission is to provide safe, on time and reliable air services to their customers. DHL International is the central platform for DHL Air Network Operations in the Middle East. It is wholly owned by Deutsche Post and operates the group's DHL-branded parcel and express services in the Middle East and North Africa as part of DHL Aviation. Its main base is Bahrain International Airport.

About 2002 Überlingen mid-air collision:

On the night of Monday, 1 July 2002, BAL Bashkirian Airlines Flight 2937, a Tupolev Tu-154 passenger jet, and DHL International Aviation ME Flight 611, a Boeing 757 cargo jet, collided in midair over Überlingen, a southern German town on Lake Constance, near the Swiss border. All of the passengers and crew aboard both planes were killed, resulting in a total death toll of 71.