Build Array dialog box
Add elements to the array that is used by the selected Select object. You can add two types of elements to the array: Strings and Expressions. Type strings and expressions in the text boxes at the left. Then click the Add> buttons to move them into the Array Elements panel
Dialog box options
String
Type a string in the String box and press the Add button; the new string will move to the box labeled Array Elements. The string box checks to make sure that the entered characters fit the definition of a string (almost any characters including spaces).
Expression
Enter a dBL expression. The Expression box checks that the characters entered fit the definition of a valid expression.
Array elements
Your strings and expressions are listed here as you add them by clicking the Add> button. Each string or expression is an element in the array.
How to get there: In the Inspector, click the wrench tool beside the dataSource property to open the DataSource Property Builder. Set the Type to Array, and click the Data Source tool.