After the extension is installed you will have an additional menu item in the project file context menu.
Instructions
To demonstrate this retargeting process, I am going to start by creating a default universal Hub application.
NOTE: The retarget menu item will only be available on Windows Store 8.1 (C#) and Windows Phone 8.1 (C#) projects. | Once the retargeting operation is completed, visual studio will be asking to reload the project. You can select “Reload All” option. |
Happy coding everyone.
References: https://canbilgin.wordpress.com/tag/windows-10-development-sdk/