Elevator hoistway door key multi-tool

An elevator hoistway door key multi-tool, comprising:

• A) a housing assembly comprising a first sidewall having first and second ends, a second sidewall having third and fourth ends, interior edges, a first pin, and a second pin, whereby said first and second pins keep said first and second sidewalls substantially parallel and spaced apart from each other defining a cavity;
• and
• B) a key assembly having a T-shaped key, a two-section flapper-type drop key, and a semicircular key wherein said T-shaped key comprises a wall, an exterior wall, a first distal end, and a first base having a first hole, whereby said wall and said exterior wall extend from said first base and are at a perpendicular disposition with respect to each other, said first base extends beyond said exterior wall at one side and beyond said wall at an opposite side, whereby a side protruding from said wall defines a first rounded corner and extends around said first hole, and said opposite side of said first base defines a first notch and a first ridge, said two-section flapper-type drop key comprises a distal wall and a proximal wall connected to each other by a pivoting pin, a second base having a second hole, and an edge, said first pin passes through said second hole, whereby said second base is pivotally mounted to said first pin, said exterior wall have a same dimension of said first base, and occupies a first half of a space between said first and second sidewalls, whereby said first half being adjacent to said first sidewall, said distal wall and said proximal wall are both half of a dimension of said second base, whereby when aligned in a retracted position, occupy a second half of said space between said first and second sidewalls, said T-shaped key and said two-section flapper-type drop key are pivotally mounted to said first pin, whereby said T-shaped key is adjacent to said first sidewall, and said two-section flapper-type drop key is adjacent to said second sidewall.