How do I add a third party javascript to a Teamcity page?

Question

JavaScript

I want to add a Google Analytics script to monitor the status of the Teamcity server.
Found in the folder /opt/TeamCity/webapps/ROOT/index.jsp pressed the script tag, restarted TC. But nothing appeared.
How do jsp files get inside tomcat? How can I add my changes to the server page?

Answer 1

So far I have found an option to add in the template webapps/ROOT/WEB-INF/tags/_loginPageDecoration.tag
Because only this page is visible from the outside.