A way of doing it is editing the file : /boot/grub/menu.lst
To open the file you have to navigate in konsole to /boot/grub and use the command:
$ sudo gedit menu.lst
In the option default=0 you can change the number depending on the option you want to load, in the option timeout=6 you can change it to the seconds you want to have for choosing your option, you can change the background image, the only thing is that it's gotta be a .xpm.gz
And you can change what you want to load as your options, the title, location,etc.