Child containers have embedded context menu which allows hiding or maximizing a child container. At runtime you can show this context menu with a right click on the empty area in a child container or with a click on the tool-icon.

The following GIF illustrates context menu displayed on right-clicking the child container.

 

The context menu can be customized using the ContextMenuStrip property of the DashboardOptions class. To create a custom context menu, refer Creating Custom Context Menu.