One of the positive things about Ubuntu and GNU / Linux is the strong customization it has of the operating system over others like Windows which barely allows you to customize the operating system. so in Ubuntu we can customize even the key combinations of the Operating System, something that can be useful to more than one user.
these key combinations and commands can be predefined or changed as we want or easier for us. This is useful if for example we have problems with our keyboard or we have a broken key, it will also allow us to open everything using key combinations and forget to use the mouse.There are currently three methods in Ubuntu to change or alter key combinations. Two of them are easy while the other is a method for somewhat advanced users. In this case the easiest method is by the installation of the Keytouch program which allows us to modify everything graphically. en this link you can find more information about the application.
Key combinations can be useful for when the mouse is not working
The second method is more difficult but it really works, it is done using the GConf-Editor. In this editor we go to apps / metacity / keybinding_commands and there we shall see a list of 12 orders that we can alter to our liking. en apps / metacity / global_keybindings we will find other different functions but they will complement the other commands.
The third method is one that you will all know and have probably already handled. en System Features-> Preferences-> Key Combinations, Any Ubuntu user will be able to change and alter system key combinations, albeit only to a limited extent.
If you really want to have a strong customization of the operating system, ie our Ubuntu, i would use all the systems, As there are commands that do not appear in System Features but that KeyTouch can alter and other commands that can only be executed through the GConf-Editor. Hence the three systems. But if you don’t want to customize much, the safest option may be the simple methods Don’t you believe?