@donalaya The reference integration appears to be defined, however the only option I get when in the References field, is to 'Add' a new issue, i.e. Create an issue. In my case, the issue already exists and I just want to reference it.
@tgurock As indicated above, I don't want to Add a new issue, simply reference an existing issue, e.g. a Story.
There must be a way, so I am either not setup correctly, or I am missing something obvious in what you guys are telling me. I have an existing Jira Issue and an existing TestRail Test Case, I want to link the two together.