Portfolio Team Field
I have multiple teams that could work on a JIRA Project. We would like to restrict which teams can work on an issue in a project by restricting the shared Teams available in the Teams field in JIRA from Portfolio or JIRA. We attempted to do this by creating shared teams in Portfolio. We then added the desired shared teams to our Plans that contain JIRA Projects. At this point, we assumed that the list of teams would only be the ones in the Portfolio plan. It actually had the opposite effect and displayed all of the shared teams and would not allow us to add teams specifically that would only work on a specific project. My next attempt was to create a custom configuration for the field, but JIRA doesn't let you do this because it comes from Portfolio.
Are there any ideas about how to manage Portfolio Teams?