update for March release

Author: stevestein

docs/sql-operations-studio/extensions.md

@@ -0,0 +1,40 @@
+---
+title: Extend the functionality (add extensions) of SQL Operations Studio (preview) | Microsoft Docs
+description: Extend the functionality (add extensions) of SQL Operations Studio (preview)
+ms.custom: "tools|sos"
+ms.date: "03/28/2018"
+ms.reviewer: "alayu; erickang; sstein"
+ms.prod: "sql-non-specified"
+ms.suite: "sql"
+ms.prod_service: sql-tools
+ms.component: sos
+ms.tgt_pltfrm: ""
+ms.topic: "article"
+author: "stevestein"
+ms.author: "sstein"
+manager: craigg
+ms.workload: "Inactive"
+---
+# Extend the functionality (add extensions) of [!INCLUDE[name-sos](../includes/name-sos-short.md)]
+
+Extensions in [!INCLUDE[name-sos](../includes/name-sos-short.md)] provide an easy way to add more functionality to the base [!INCLUDE[name-sos](../includes/name-sos-short.md)] installation. 
+
+Extensions are provided by the SQL Operations Studio team (Microsoft), as well as the 3rd party community (you!). For details about creating extensions, see [Get started with Extensibility](https://github.com/Microsoft/sqlopsstudio/wiki/Getting-started-with-Extensibility).
+
+
+## Add SQL Operations Studio extensions
+
+1. To open the extensions manager and access the available extensions, select the extensions icon, or select **Extensions** in the **View** menu.
+2. Select an available extension to view it's details.
+
+   ![extension manager](media/extensions/extension-manager.png)
+
+1. Select the extension you want and **Install** it.
+2. Select **Reload** to enable the extension (only required the first time you install an extension).
+1. Navigate to your management dashboard by right-clicking your server or database and selecting **Manage**.
+2. Installed extensions appear as tabs on your management dashboard:
+
+   ![extension manager](media/extensions/dashboard-extensions.png)
+
+
+