While Nautilus was indeed not part of Kubuntu, I forgot I added it to mine,
of course any good flie editor would suffice. Editing the Grub is simple as
you found, and usless you want to continiuously tab up and down for a
selection on each and every boot, its a real boon to change the order.
While I am sorry I did not help first time I am glad to hear you sorted it
out another way. We can all offer each other help. There is not such thing
as an expert.