When many operations are available it is impractical to arrange
them all in command buttons. For this reason we have menus.
Typically we will use a "menubar" consisting of several menus
arranged side by side The menubar is a series of menu buttons
arranged side by side. In the above picture, the menus are
"File" through to "Help". Selecting an item from a menu is done
by pressing and holding the left mouse button whilst the cursor
is above the menu button. The available menu choices will then
be displayed. Whilst still pressing the mouse button, move down
to the desired choice and then release the mouse button.
Releasing the mouse button when the mouse cursor is not over a
menu item will remove the menu without executing any options.
Alternatively, it is possible to press and release the left
mouse button whilst the cursor is above a menu button. The menu
options will be revealed. Now move down and press and release
the left button once more once on the selected item. To see an
overview of the menu contents p