Grub customizer allow user to change in boot menu items, you can add, rename, remove, reorder boot menu items. Grub Customization software also allow changes to the Grub 2 configuration settings such as pictures in background and menu timeout.

To install Grub Customization Software, First open terminal (Press Alt+F2 and type: gnome-terminal) and copy the following commands in the terminal:

sudo apt-add-repository ppa:danielrichter2007/grub-customizer
sudo apt-get update
sudo apt-get install grub-customizer