Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Enabled
TCRANE_VISUALIZATION_ENABLED
Parameter: Color
TCRANE_VISUALIZATION_COLOR
Parameter: Target Color
TCRANE_VISUALIZATION_COLOR_T
Parameter: Link
TCRANE_BASE_LINK
Parameter: Rail Spline
TCRANE_BASE_LINK_RAIL
Parameter: Base Pos
TCRANE_BASE_LINK_POS
Parameter: Tangential
TCRANE_BASE_LINK_TANGENTIAL
Parameter: Base Heading
TCRANE_BASE_HEADING
Parameter: Base Height
TCRANE_BASE_HEIGHT
Parameter: Arm Length
TCRANE_ARM_LENGTH
Parameter: Arm Pitch
TCRANE_ARM_PITCH
Parameter: Arm Target
TCRANE_ARM_TARGETLINK
Parameter: Head Height
TCRANE_HEAD_A_HEIGHT
Parameter: Head Heading
TCRANE_HEAD_A_HEADING
Parameter: Head Width
TCRANE_HEAD_B_LENGTH
Parameter: Head Target
TCRANE_HEAD_TARGETLINK
Parameter: Camera Pitch
TCRANE_CAM_PITCH
Parameter: Camera Banking
TCRANE_CAM_BANKING
Parameter: Camera Offset
TCRANE_CAM_PARALLAX
Parameter: Compensate Pitch
TCRANE_CAM_COMPENSATE_PITCH
Parameter: Compensate Heading
TCRANE_CAM_COMPENSATE_HEADING