Create a pose to serve as a neutral position for an inverse kinematic skeleton before you start to animate.
Choose Animation > IK > Set rest pose
q to open
the Rest Pose Options box:
None — Sets a pose for selected joints only.
Above — Sets a pose for selected joints and all joints above them.
Below — Sets a pose for selected joints and all joints below them.
Both — Sets a pose for selected joints and all joints above and below them.
Used — Sets a pose for all joints that have been transformed.
All — Sets a pose for every joint in the skeleton.
Rotation — Sets a pose for rotation parameters.
Translation — Sets a pose for translation parameters.
Both — Sets a pose for both rotation and translation parameters.
