You can visualize your streams of development and changesets in the changesets graph.
Do one of the following:
In Package Explorer right-click a stream or project and select Team | Open Changeset Graph.
In Dimensions CM Explorer right-click a stream or project and select Open Changeset Graph.
The changesets graph is displayed in an embedded browser in a new tab.
TIP To configure the browser and how it appears go to Window | Preferences | General | Web Browser section.