Team
Select only one board as a data source with additional filters due to your Jira Setup if you want to analyze metrics on the team level:
Cross-team
To aggregate several teams as one, select two boards and more.
Screenshot with JQL filter
If sprints are not synced by start and/or date, use parallel gap:
If sprints are synced, you see them under one section:
Personal
Individual metrics are aggregated using the default Assignee field in Jira. Only if the issue is assigned to the user then it counts.
