Adobe ACROBAT 3D Manual page 210

Changing radio button properties
To create related radio buttons, each radio button field must have the same Name property
as the related radio buttons, and each must have a unique export value. The export value is
the information that distinguishes and identifies the radio button and can be used by a CGI
application on a web server. (See
To change radio button properties:
1. In the Radio Button Properties dialog box, click the Options tab, and then do any of the
following:
Select a style for the radio button. Circle is the default.
Enter an export value to identify the radio button and differentiate it from other radio
buttons that share the same Name value.
Select whether or not you want the radio button checked by default.
Select whether or not you want radio buttons with the same name and value selected in
unison. For example, if the user selects a radio button that has the same field name and
export value as another, both radio buttons are selected.
2. Click Close.
Defining CGI export values.)