Check Boxes
Click the box beside or after an option to select or clear the check box. When you click an empty box, a check mark or an X appears in the box. If you click a box that is selected, then the check mark or X disappears.
In query mode, check boxes have a third possible state. For more information about using check boxes in query mode, see Tips for Queries.
You can press the space bar to select and deselect check boxes.
The following image shows an example of check boxes.
