Apple iWork '08 - Manual (Page 63)

Chapter 2 Getting Started with Numbers 63
4 Click the cell containing the text Length in Months.
When you click the small arrow that appears, a pop-up menu opens. The pop-up
menu is one kind of cell control. Cell controls provide a way to control the data that a
cell can contain. In the case of a pop-up menu, the cell can contain only one of the
items in the menu.
You’ll learn later how to add different kinds of cell controls—such as checkboxes and
sliders—to a cell.
Introducing Charts
Charts provide a graphical way to display table data. In the template you’re
working with, the Monthly Payments chart shows some of the data in the Loan
Comparison table.
Click this arrow.