Click the button on the upper toolbar to display the skeleton graph. Select the skeleton in the MarkerSet list in the asset panel, and its data curve will be displayed in the skeleton graph. The "qx, qy, qz, qw" values on the right represent the quaternion of the skeleton's rotation (11.2.1).
In the Skeleton Graphs, you can choose to view the "Quaternion, Euler angle, Translation, Velocity, Acceleration" of the skeleton. The "Frame Rate" in the Skeletio Ghaphs Settings Panel can calculate the frame interval of the skeleton data. You can choose "3, 5, 7, 9" frame to calculate;