...

4) To remove an uninteresting data point, click on the sprint, then choose "remove". This will remove the data point until you refresh the application. 

5) When sprints from other teams are shown in your chart, this is likely because you have exchanged a story - something that was in their sprint previously and you completed, or something that was in your sprint previously that they completed. If this is the case, the best remedy is to remove the data point.
Alternatively, other team's sprints can be shown because your team or story is assigned incorrectly - this can be fixed by drilling through the item and correcting the data in Jira.

Business value chart

Link (Under construction)