106 Introduction to Microsoft Offi ce Copyright Goodheart-Willcox Co., Inc. In the lower-right corner of most groups on the ribbon is a small arrow. This is called a dialog box launcher. Clicking the arrow opens a dialog box related to the commands in the group. Keyboard Navigation The ribbon is designed for using a mouse to select commands. However, the keyboard can also be used to navigate the ribbon and select commands. This allows the user to quickly complete tasks without removing his or her hands from the keyboard to use the mouse. Access keys are used to navigate the ribbon with the keyboard. An access key is the keyboard key or key combination used instead of the mouse to activate a command. These are often called keyboard shortcuts. Access keys are displayed by pressing the [Alt] key on the keyboard. Little boxes called key tip badges appear over each command in the Quick Access toolbar and the ribbon tabs, as shown in Figure 4-3. To activate a command on the Quick Access toolbar, press the key or key combination shown in the key tip badge corresponding to the command. To access a command on the ribbon, fi rst press the access key for the tab, even if the tab is currently visible, and then press the key or key combination shown for the command. FYI Many computer users fi nd navigating the ribbon using the keyboard to be signifi cantly faster and more effi cient than navigating using the mouse. Ribbon Tab Command button Group Dialog box launcher Goodheart-Willcox Publisher Figure 4-2. The ribbon is the main command interface in the Microsoft Office suite of software. Key tip badges Goodheart-Willcox Publisher Figure 4-3. Key tip badges are displayed on the ribbon when the [Alt] key is pressed.