# Astor Main Window

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{audience}`administrators, developers, users`
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> - On the main window, the control system is displayed as a tree.
> - Where the root is TANGO, the branch are hosts family and leaf are hosts.
> - The Astor main window is able to give a global status of the control system.
>
> ```{image} img/main_window.jpg
> ```

> - The tree is collapsed, but the node icon display the status of the hosts under.
>
> ```{image} img/main_window2.jpg
> ```

> - An individual control on a host could be done by a click on a host.
> - A popup menu will be displayed with a right click on a host.
>
> ```{image} img/main_window3.jpg
> ```