CCL: Natural transition orbitals (NTOs ) analysis?

 Sent to CCL by: "Yi ming  Cheng" []
 Due to a need of more compact description of the excitation from TDDFT result I
 wonder how can I do the NTOs analysis just like the reference listed below?
 Thank you in advance and any suggestion would be very appreciated.
  J. Phys. Chem. A 2005, 109, 3128.