Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: smoothness
OSC_TRANSFORM_SMOOTHNESS
Parameter: speed [m/s]
OSC_TRANSFORM_MOVEMENT_SPEED
Parameter: xy movement method
OSC_TRANSFORM_XY_MOVEMENT_METHOD_NAME
Parameter: set
OSC_TRANSFORM_SET_XY_MOVEMENT_METHOD_NAME
Parameter: z movement method
OSC_TRANSFORM_Z_MOVEMENT_METHOD_NAME
Parameter: set
OSC_TRANSFORM_SET_Z_MOVEMENT_METHOD_NAME
Parameter: multi touch method
OSC_TRANSFORM_TOUCH_METHOD_NAME
Parameter: set
OSC_TRANSFORM_SET_TOUCH_METHOD_NAME