Add ADR screenshots

Author: dominicbetts

articles/iot-operations/deploy-iot-ops/howto-manage-update-uninstall.md

@@ -109,21 +109,39 @@ You can run `az iot ops check` on your cluster to assess health and configuratio
 
 ### View Azure Device Registry
 
-<!-- TODO - 2507 Expand this section with more details about the Azure Device Registry. -->
-
-In the Azure portal, you can view the Azure Device Registry, which is a collection of all devices and assets that are connected to your Azure IoT Operations instance.
+In the Azure portal, you can view the Azure Device Registry, which is a collection of all the devices and assets that are connected to your Azure IoT Operations instance.
 
 The Azure Device Registry uses _namespaces (preview)_ to organize assets and devices. Each Azure IoT Operations instance uses a single namespace for its assets and devices. Multiple instances can share a single namespace.
 
-<!-- TODO - 2507 Expand this section with more details about the connector template configuration. -->
+To view items in the Azure Device Registry in the Azure portal:
+
+1. In the [Azure portal](https://portal.azure.com), search for and select **Azure Device Registry**. The **Overview** page summarizes the number of assets, schema registries and namespaces in your subscription:
+
+    :::image type="content" source="media/howto-manage-update-uninstall/azure-device-registry-overview.png" alt-text="Screenshot of Azure Device Registry overview page in the Azure portal." lightbox="media/howto-manage-update-uninstall/azure-device-registry-overview.png":::
+
+1. Use the **Assets** page to view the assets in Azure Device Registry. By default, the **Assets** page shows the assets in all namespaces in your subscription. Use the filters to view a subset of the assets, such as the assets in a specific namespace or resource group:
+
+    :::image type="content" source="media/howto-manage-update-uninstall/azure-device-registry-assets.png" alt-text="Screenshot of Azure Device Registry assets page in the Azure portal." lightbox="media/howto-manage-update-uninstall/azure-device-registry-assets.png":::
+
+1. Use the **Schema registries** page to view the schema registries in Azure Device Registry. By default, the **Schema registries** page shows the schema registries in all namespaces in your subscription. Use the filters to view a subset of the schema registries, such as the schema registries in a specific namespace or resource group:
+
+    :::image type="content" source="media/howto-manage-update-uninstall/azure-device-registry-schema-registries.png" alt-text="Screenshot of Azure Device Registry schema registries page in the Azure portal." lightbox="media/howto-manage-update-uninstall/azure-device-registry-schema-registries.png":::
+
+1. Use the **Namespaces** page to view the namespaces in Azure Device Registry. By default, the **Namespaces** page shows the namespaces in your subscription. Use the filters to view a subset of the namespaces, such as the namespaces in a specific resource group. From this page, you can create new namespaces, or view the details of existing namespaces:
+
+    :::image type="content" source="media/howto-manage-update-uninstall/azure-device-registry-namespaces.png" alt-text="Screenshot of Azure Device Registry namespaces page in the Azure portal." lightbox="media/howto-manage-update-uninstall/azure-device-registry-namespaces.png":::
+
+You can also view the details of an existing namespace in the resource group that includes your Azure IoT Operations instance. For example, the following screenshot shows the **adr-namespace** resource associated with the **aio-131235032** Azure IoT Operations instance:
+
+:::image type="content" source="media/howto-manage-update-uninstall/portal-resources.png" alt-text="Screenshot of Azure portal showing resources in the resource group." lightbox="media/howto-manage-update-uninstall/portal-resources.png":::
+
+The previous screenshot also shows the other resources in Azure Device Registry such as the **IoT Schema Registry**, **IoT Namespace Assets**, and **Devices** in the context of the resource group that contains your Azure IoT Operations instance.
 
 ### Configure connector templates
 
 In the Azure portal, you can configure *connector templates* for your Azure IoT Operations instance. Connector templates define the configuration of connectors, such as the connector for OPC UA, that are deployed to your cluster. When you create a connector template, it enables an OT user to create a device that uses the connector type in the operations experience web UI.
 
-### Configure discovery handlers
-
-In the Azure portal, you can configure *discovery handlers* for your Azure IoT Operations instance. Discovery handlers define the configuration of the handlers that can automatically discover assets and devices in your environment. When you create a discovery handler, it enables an OT user to configure the discovery of assets and devices of the type defined in the handler in the operations experience web UI.
+<!-- TODO - 2507 Expand this section with more details about the connector template configuration. -->
 
 ### Clone instance (preview)