Boot configuration in fedora operating system (GNOME desktop) is easy.

Already we have wrote yesterday about adding multiple boot menu in fedora operating system.

But after configuring time out, default boot option, if you like to re configure time out and default boot option, again you no need to edit the grub.conf file or menu.lst file via terminal.

Go to System–>Administration–>Bootloader as shown above picture

You can get Boot Configuration window and re configure default boot entry option and Time out option  as shown above picture!