I know how to create and manage issue type schemes. However, we no longer want our users to utilize an issue type going forward, but don't want to lose history. If the new scheme doesn't have the issue type, then I have to migrate history to a new type, which I don't want to use.
I also don't want to customize the configuration of the type because then it becomes a maintenance headache when a new project is added. I have to remember which issue types are now not global.
Any ideas?