User's Guide > About the User's Guide > Codebeamer: Common Concepts > Trackers > Tracker Views > Upstream and Downstream Reference Arrows in Tracker Views
Upstream and Downstream Reference Arrows in Tracker Views
When you open a tracker in Table View, Document View, or Document Edit View, the system displays arrows indicating if an item has upstream () or downstream () references:
If you hover over the arrow next to an item with your mouse pointer, the system displays the upstream/downstream references related to the item.
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The number of references displayed for a work item depends on system configuration. System administrators can modify the settings in the Application Configuration menu on the System Admin tab. For more information, see section Application Configuration.
For further configuration options related to the displaying of upstream and downstream references, see the following sections:
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