You can adjust the settings you defined when you created the matrix zone, such as the number of elements and choices, from the Matrix tab of Zone Object dialog box:

• The Horizontal Origin is the response position from the left of the form.
• The Vertical Origin is the response position from the top of the form.

For each of the elements and choices:

• Repeats is the number of elements.
• The Count is the number of choices.
• Spacing is the number of response positions between elements or choices.
• The orientation of elements or choices may be either Horizontal or Vertical.