Info menu

• "Copyright" menu item
• "GGU on the web" menu item
• "GGU support" menu item
• "Maxima" menu item
• "Compare earth pressure coefficients" menu item
• "kh method" menu item
• "M-N diagram" menu item
• "Steel design to EC3" menu item
• "Help" menu item
• "What's new?" menu item
• "Language preferences" menu item