# EI Tunnel Manager User Interface

Number | Element | Description
--- | --- | ---
1 | App menu | Click the Menu icon in the upper left corner to open the navigation pane.
2 | Navigation pane | Use the navigation pane to open a page under an app.
3 | App window | Use the app window to access the functions of the open page.
4 | Ribbon elements | The ribbon displays the user that is signed in. Click the Theme icon to switch between dark and light themes. Click the Bell icon to view the notifications. Click on a notification to open it in the Notification Center. Click the Info icon to open the About Pop-Up Click the Logout icon to log out.