Our JIRA installation grew like a monster over the years - custom fields were created for anything and everything without trying to re-use existing fields - same story with screens, schemes. With over 300 projects and 1000+ custom fields, it's very tedious to track down what is used and what is not. In order to delete a custom field, you need to track down which project is using it, if it's on a screen, if it's in a transition workflow....
is there any tools that can look at the custom fields ( or screens/schemes..) and let the admin know what can be deleted or what is barely used ( and could be ported)?