We host enterprise-wide non-functional requirements in Confluence. They are on pages, and can be applied to projects. Currently this requires a PMO or some other user who is responsible for managing requirements for a project to manually create a Jira issue in their project.
Current create Jira functionality is... ridiculous. You can create an issue with a Confluence page, but it creates a specific issue and links that page specifically to that one specific issue.
What we want is a button that a PMO can click, that lets them select their project and issue type, and then it pre-populates the Summary and Description.
All of the current "Add issue button" type of plugins that I see require the project to be specified in advance. But that limits the functionality to the point of being useless if you are using them on an enterprise-wide scale.