During a chat with Botron Software on Partner Day, I was asking about Configuration Manager and they mentioned 'Power Admin'.
Power Admin is a Jira add-on that makes an admins life a whole load easier by giving you an easy way to search for configuration elements, rename and configure them without worrying that everything is going to catch fire in the background! It helps to understand dependencies, clean up your instance or handle integrity issues with ease.
And the best thing? Power Admin is currently free on the Atlassian Marketplace (eventually becoming paid-for when they have turned all their ideas into reality!) Definitely one of those add-ons that once you've got it, you can't live without it.
Marketplace link: https://marketplace.atlassian.com/apps/1219634/power-admin
(P.S. Definitely not sponsored by Botron!)