When I add an attachment in JIRA, I can see a lock that defaults to "Viewable by all users", but also allows me to restrict the attachment based on a Project Role. It lists two roles: Users and Administrators. I have other roles defined in the system. Can I restrict the attachment based on these other roles? They are not showing up in this restriction list. Ultimately, we would like to restrict some attachments to a role called "Specialists" because these attachments may contain confidential information.