A method for manufacturing a stapling end effector control assembly (1, 20, 30, 100, 1002, 1104, 1105, 1110, 1120, 1130), which comprises: providing a control shaft assembly (1110, 1130) having: a longitudinal axis with a distal end effector assembly (1, 20, 30, 100,1002); and an actuating part (120, 1002, 1104, 1105, 1120) operable to selectively place the end effector assembly (1, 20, 30, 100,1002) in an unlocked state and a locked state by a displacement of the actuating part (120, 1002, 1104, 1105, 1120) parallel to the longitudinal axis to unlock and lock an articulation joint connecting the end effector assembly (1, 20, 30, 100, 1002) to the control shaft assembly (1110, 1130), wherein the actuating part (120, 1002, 1104, 1105, 1120) passes through an interior of the control shaft assembly (1110, 1130) upon its displacement; providing the control shaft assembly (1110, 1130) with a proximal handle connector (1131, 1132, 1133, 1134, 1141) having a rotating link operable to connect the control shaft assembly (1110, 1130) to a control handle rotatably about the longitudinal axis; and fixing an end effector two-function actuator: rotationally to at least part of the control shaft assembly (1110, 1130) to couple rotation of the two-function actuator, the control shaft assembly (1110, 1130), and the end effector assembly (1, 20, 30, 100, 1002) about the longitudinal axis; and longitudinally to the actuating part (120, 1002, 1104, 1105, 1120) to couple longitudinal movement of the two-function actuator and the actuating part (120, 1002, 1104, 1105, 1120) with respect to the control shaft assembly (1110, 1130). providing a control shaft assembly (1110, 1130) having: a longitudinal axis with a distal end effector assembly (1, 20, 30, 100,1002); and an actuating part (120, 1002, 1104, 1105, 1120) operable to selectively place the end effector assembly (1, 20, 30, 100,1002) in an unlocked state and a locked state by a displacement of the actuating part (120, 1002, 1104, 1105, 1120) parallel to the longitudinal axis to unlock and lock an articulation joint connecting the end effector assembly (1, 20, 30, 100, 1002) to the control shaft assembly (1110, 1130), wherein the actuating part (120, 1002, 1104, 1105, 1120) passes through an interior of the control shaft assembly (1110, 1130) upon its displacement; a longitudinal axis with a distal end effector assembly (1, 20, 30, 100,1002); and an actuating part (120, 1002, 1104, 1105, 1120) operable to selectively place the end effector assembly (1, 20, 30, 100,1002) in an unlocked state and a locked state by a displacement of the actuating part (120, 1002, 1104, 1105, 1120) parallel to the longitudinal axis to unlock and lock an articulation joint connecting the end effector assembly (1, 20, 30, 100, 1002) to the control shaft assembly (1110, 1130), wherein the actuating part (120, 1002, 1104, 1105, 1120) passes through an interior of the control shaft assembly (1110, 1130) upon its displacement; providing the control shaft assembly (1110, 1130) with a proximal handle connector (1131, 1132, 1133, 1134, 1141) having a rotating link operable to connect the control shaft assembly (1110, 1130) to a control handle rotatably about the longitudinal axis; and fixing an end effector two-function actuator: rotationally to at least part of the control shaft assembly (1110, 1130) to couple rotation of the two-function actuator, the control shaft assembly (1110, 1130), and the end effector assembly (1, 20, 30, 100, 1002) about the longitudinal axis; and longitudinally to the actuating part (120, 1002, 1104, 1105, 1120) to couple longitudinal movement of the two-function actuator and the actuating part (120, 1002, 1104, 1105, 1120) with respect to the control shaft assembly (1110, 1130). rotationally to at least part of the control shaft assembly (1110, 1130) to couple rotation of the two-function actuator, the control shaft assembly (1110, 1130), and the end effector assembly (1, 20, 30, 100, 1002) about the longitudinal axis; and longitudinally to the actuating part (120, 1002, 1104, 1105, 1120) to couple longitudinal movement of the two-function actuator and the actuating part (120, 1002, 1104, 1105, 1120) with respect to the control shaft assembly (1110, 1130).