Rotate A is not a physics object. It is a transformation control. It will rotate a certain degrees on any of the 3 axis. Please clear the animation track in the timeline before your next simulation to avoid residual animation.
Basic Control
Rotate Clockwise X: The prop will rotate certain degrees clockwise along the X-axis when this button is pressed
Rotate Counter Clockwise X: The prop will rotate certain degrees counter clockwise along the X-axis when this button is pressed
Rotate Clockwise Y: The prop will rotate certain degrees clockwise along the Y-axis when this button is pressed
Rotate Counter Clockwise Y: The prop will rotate certain degrees counter clockwise along the Y-axis when this button is pressed
Rotate Clockwise Z: The prop will rotate certain degrees clockwise along the Z-axis when this button is pressed
Rotate Counter Clockwise Z: The prop will rotate certain degrees counter clockwise along the Z-axis when this button is pressed
Release Object: Release an object that has been picked. This object will no longer behave like Rotate A. The picked number will be subtracted by 1.
Picked Number: The number of objected that has been picked by Rotate A.
Unit: How many degrees will the prop rotate when the rotate button is pressed
Physics Attribute
Rotate A is a transformation control. This type of control is marked with a T sign on the control UI. It has Kinematic attribute which gives collision to other dynamic objects, but not being affected by collision from external physics objects (dynamic or kinematics). After your transform operation, it keeps all the keys on the timeline. Press play and you can replay the animated result; press remove animation keys from the right click menu to remove animation so you can have a new transformation clip.