Before we begin our overview of the menu items, let's address the issue of what shows up in the menu. By default the menu items only include recently chosen items with a set of arrows at the bottom which you can click on to see the menu items that have been hidden. This can be convenient if you have a small screen or if you don't use certain items. Personally, I prefer that the menu always shows all of the items every time.
If you desire this behavior, you can set it easily. Right-click on any toolbar or on the menu bar, and choose Customize…. Then choose the Options tab as shown in the following screenshot:
Simply uncheck the item Menus ...