Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Capture
BODYCAPTURE_FILENAME
Parameter: Body
BODYCAPTURE_BODY_LINK
Parameter: Add Body
BODYCAPTURE_BODY_ADD
Parameter: Pose
BODYCAPTURE_POSE
Parameter: Locked
BODYCAPTURE_LOCKED
Parameter: Set Timeline to FrameCount
BODYCAPTURE_SETTIMELINE
Parameter: Set Neutral Frame
BODYCAPTURE_SETNEUTRALFRAME
Parameter: Clear Neutral Frame
BODYCAPTURE_CLEARNEUTRALFRAME
Parameter: Start Frame
BODYCAPTURE_STARTFRAME
Parameter: Length
BODYCAPTURE_RANGELENGTH
Parameter: Root Rotation
BODYCAPTURE_ROTATION
Parameter: Root Offset
BODYCAPTURE_OFFSET
Parameter: Camera
BODYCAPTURE_CAMERA
Parameter: Add Camera
BODYCAPTURE_ADDCAMERA
Parameter: Orientation
BODYCAPTURE_ORIENTATION
Parameter: Bake
BODYCAPTURE_BAKE
Parameter: Position
BODYCAPTURE_MATRIX_BODY_POSITION
Parameter: Rotation
BODYCAPTURE_MATRIX_BODY_ROTATION
Parameter: Position
BODYCAPTURE_MATRIX_CAMERA_POSITION
Parameter: Rotation
BODYCAPTURE_MATRIX_CAMERA_ROTATION
Parameter: Position
BODYCAPTURE_MATRIX_NEUTRALFRAME_POSITION
Parameter: Rotation
BODYCAPTURE_MATRIX_NEUTRALFRAME_ROTATION