Hi @Raja Deshapu - thanks for reaching out. I'm happy to talk with you more about Jira Align. Would you mind emailing me at cdadeo@atlassian.com to set up time to chat?
For others landing on this question, Align is not (yet) "added" to anywhere. You set up an Align system and then connect it to the Jira system(s) you want it to work with.