If you are using Linux on multiple monitors you are surely going to miss Utramon, but don’t worry. You can get your task-bar on multiple monitors using the following instructions
1.) Right click on anywhere on the launch-bar, click “New Panel”
2.) Drag that to any monitor.
3.) Right click on that panel, and click “Add to Panel”
4.) Select “Window List” under Desktop and Windows
5.) Click Add.
6.) Add as many widgets you want to the taskbar
7.) Click Close, and you’re done.