For developers: Set up your environment
 To set up your environment for creating a new widget, you need to open your Sitefinity CMS application in Visual Studio.
 To do this, use the Sitefinity CMS Project Manager in the following way:
  - Open the Sitefinity CMS Project Manager.
  - Select the desired Sitefinity CMS application.
  - Click the Edit in Visual Studio button.
  - Save the solution, which the Sitefinity CMS project has been opened in by pressing CTRL+SHIFT+S or by selecting File » Save All from the menu.
  - Choose a location and a name for the solution and click Save.
  
 You can create the widget either as user widget or as custom widget.