Radio Button Properties dialog box
Develop > Form > Form field > Radio Button
A radio button is used for making a selection when a site visitor must select only one item from among two or more choices.
Name
Enter a name for the radio button. The name is used to distinguish this field from other fields in the same form.
Value
Enter the value that will be sent to the server if the radio button is selected.
Initial state
Choose the initial state of the radio button when the document is loaded in a browser. Set this to Selected if you want the radio button to be initially selected.
Style
Click to attach a CSS style to the button using the Style dialog box.