Merge branch 'per-DN-metrics' into 2303-PR

Author: James-Green-Microsoft

articles/private-5g-core/media/packet-core-dashboards/packet-core-data-network-filter.png

@@ -90,6 +90,14 @@ You can access the following packet core dashboards:
 
     :::image type="content" source="media/packet-core-dashboards/packet-core-4g-interfaces-dashboard.png" alt-text="Screenshot of the 4G Interfaces dashboard. Panels related to activity on the packet core instance's 4G interfaces are shown." lightbox="media/packet-core-dashboards/packet-core-4g-interfaces-dashboard.png":::  
 
+#### Filter by data network
+
+Some packet core dashboards can be filtered to show statistics for specific data networks on certain panels.
+
+Where supported, at the top left of the dashboard, a **Data Network** dropdown displays all the data networks for the deployment. Selecting one or more checkboxes next to the data network names applies a filter to the panels that support it. By default all data networks are displayed.
+
+:::image type="content" source="media/packet-core-dashboards/packet-core-data-network-filter.png" alt-text="Screenshot of a dashboard showing a Data Networks dropdown." lightbox="media/packet-core-dashboards/packet-core-data-network-filter.png":::
+
 ## Panels and rows
 
 Each dashboard contains **panels** and **rows**.