I have a protein with several helices and believe only one of them (the one closest to that active center) moves significantly during a simulation.

Can someone suggest a way to use pymol to highlight the movement of the helices in this protein.  I want to select 20 structures from a trajectory, highlight each helix in the protein and hopefully it will show significant movement of this specific responsible for activity.

Thank you for any help you can provide.

Kind regards,