New Site Container: Adding a new container (Ctrl+N)
Delete Site Container: Deleting an exist container
Minimize to system tray: Minimize UltraFXP and turn it into a icon on system tray (F9)
Lock to tray: Uses with UltraFXP password protection function, a password is needed to restore a minimized UltraFXP
Exit: Quit UltraFXP
