Here is a guide to install Grub Customizer on Ubuntu 13.04, you can install Grub Customizer by adding the Launchpad PPA for Grub Customizer maintained by Daniel Richter
Grub Customizer is a graphical interface to configure the GRUB2/BURG settings and menu entries. With Grub Customizer you can move, remove or rename menu entries (they stay updatable by update-grub). You can also edit the contents of menu entries or create new ones (internally it edits the 40_custom). Grub Customizer supports GRUB2 and BURG. You can reinstall the boot loader to the MBR, change settings like the default operating system, kernel params, background image and text colors etc.
To add the PPA and install Grub Customizer open a terminal window (press Ctrl+Alt+T) and copy+paste the following lines:
sudo add-apt-repository ppa:danielrichter2007/grub-customizer -y
sudo apt-get update && sudo apt-get install grub-customizer -y
When the installation is finished you can close the terminal window, to start Grub Customizer press the SuperKey and type: grub customizer