HOW to set a input to a variable of program inside the part

well i want to make a missile and i add a program into the engine of the missile .
i want to use the variable to control the engine but idon't want to use "Partname.FlightProgram.VariableName" to assign the input because i should change many things when i copy the missile. Can i use "Me.FlightProgram.VariableName" to assign the inputcontroller?