As we know that Single sign-on is a feature offered by Crowd. Now i want to Integrate Crowd with Atlassian Bitbucket Server and other atlassian products as well. But it says that only Crowd administrator can enable this feature. Also, by default I see this feature connected through application link with JIRA and Confluence. So i need to know that how it is connected with jira and confluence through application links by default and how can I introduce this feature with other atlassian products as well to support the Single sign on functionality.