bum software package provides graphical runlevel editor, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bum
bum is installed in your system.
Make ensure the bum package were installed using the commands given below,
$ sudo dpkg-query -l | grep bum *
You will get with bum package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | bum |
| Version | 2.5.2-1 |
| Description | graphical runlevel editor |
| Sub Section | admin |