Yakuake is a terminal emulator that will slide down your screen when you press a shortcut key. It allows very fast access to your shell from any program.
It is similar to other programs like Guake and Tilda.
$ sudo apt install yakuake
The default shortcut to open
F12. This conflicts with the default shortcut to open developer tools in browsers. I personally use
F1 as the key is easy to reach and its default functionality is useless to me.
To change this, open application
System Settings, open section
Shortcuts, and choose
Global Shortcuts. In that screen, select
Yakuake as component and click on the shortcut to change it.