The Keyboard Shortcuts of Ubuntu

After we have just Installed a ubuntu 16.0.4, we can see a window that lists the keyboard shortcuts, as the following picture.
Note: Super stands for the window key.
However, after we have installed ubuntu 18.0.4, we can find the keyboard shortcuts in path:
“Setting”-> “Devices”->“Keyboard”.
We can find some keyboard shortcuts can be modified, and also we can add other keyboard shortcuts according to our hobbits.