Clearly state the function of quick access toolbar

See explanation

Explanation:

The basic function of the quick access toolbar is to home frequently used commands.

In most software applications, user tend to use some commands than other commands; so, what the quick access toolbar does is that it keeps track of these commands that are often used by the user.

Take for instance, in a Microsoft Office Word application, a user always make use of "select all", "redo" and "undo", the quick access toolbar will help this user keep this command so that the user can have a quick and easy access to it.

one method is to click on the icon.