Change the behavior of cancel button or add a new button which triggers a script when clicked

[harsha_987 (Harsha)]

Hi All,

We regularly use jenkins cancel button on the UI to cancel any running jobs or in queue one’s.
But we want to change the behavior of this button or add a new button (in pipeline page) to trigger a customised shell / python script.
Please provide any insight on the above things.

Thank you.