How can I install Grub-Customizer on KDE neon?

As Kde Neon is based on Ubuntu 18.04, you should be able to use the same directions as for Ubuntu 18.04: http://tipsonubuntu.com/2018/03/11/inst ... 18-04-lts/ which amounts to:
* Add the ppa:danielrichter2007/grub-customizer ppa and update your apt caches.
* Install the package.

@airdrik
That did the job. Thanks.

Funny. I needed Grub Customizer a few days ago too. Where the PPA did it's job well. But it would be good to have some basic Grub options in the KDE System Settings.