If you need to add a second panel/task window on your second (or more in my case) monitors using ubuntu/debian/mint linux here are two ways to achieve it.
First you should right click on the current panel and click “New panel” then all you have to do is move the panel to the other monitor of which there are a few ways, the easiest two are
– Hold ALT and drag the panel to the new window.
– Right click the panel and go to properties
– Uncheck “Expand”
– Now drag the smaller panel to the monitor you want it on
– Right click and re-check expand and also select where you want it (top/bottom/left/right)
Then simply add what items you want on the panel. In my case I added the Window List item.