Comment 4 for bug 475086

Ok - since you edited menu.lst by hand, I'm marking this as a duplicate of bug #470490, thanks.

If by "grub editor app" you're referring to kgrubeditor, this was removed precisely because it did not interact appropriately with the grub package's update-grub script, leaving users with no idea that manual action was needed to get kernel updates installed - including security updates. Having a GUI editor for grub entries is less important than making sure users' systems are secure and usable.