You can create custom mobile menu in Appearance > Menus http://prntscr.com/dgk7ns and add some additional information as menu items. Also, you can use Mobile widget area (Appearance > Widgets) but it will appear below the mobile menu.
If you need any other changes it’s possible only by additional customization.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.