FEM mesh menu

• "Preferences" menu item
• "FEM mesh" menu item
• "Outline" menu item
• "Define nodes" menu item
• "Change (nodes)" menu item
• "Move (nodes)" menu item
• "Edit (nodes)" menu item
• "Array" menu item
• "Manual mesh" menu item
• "Automatic" menu item
• "Round off" menu item
• "Delete" menu item
• "Optimise" menu item
• "Align" menu item
• "Refine individually" menu item
• "(Refine) Section" menu item
• "(Refine) All" menu item
• "Save/load mesh"