The camera reference frame is not the same as the robot reference frame in Mech-Vision.
The reason it appears to be the same is that the default camera extrinsic parameter is [0, 0, 0, 1, 0, 0, 0] (transfer matrix) before camera calibration. This makes the camera reference frame align with the robot reference frame visually. After calibration, the point cloud will be displayed based on the robot reference frame.
Furthermore, adjusting the robot reference frame is not permitted in Mech-Vision.