8.6.1 Keyboard
Selecting with the Keyboard
To set the focus to a control item (check box, push button, entry field, etc.) within a dialog box, use the Tab key on the keyboard. The Tab key will select the next control item or input field within the dialog box. Within a group of control items, such as check boxes or push buttons, the Arrow keys are used to move from one control item to another. Press the spacebar to select or deselect an item.
The control item in focus will have a small dotted box around it. If the control item is an entry field, an I-beam pointer will appear.
When you press Enter, the selected push button will be accepted.