Hi @Aniket Gaurikar,
Did you see my response below? Check this article from Alikutty which describes the isolate script functionality in detail.
https://www.servicenow.com/community/developer-blog/isolate-script-in-london/ba-p/2275821
To help others (or for me to help you more directly), please mark this response correct by clicking on Accept as Solution and/or Helpful.
Thanks, Robbie
