InfoPath "Option Button"

Hello and thanks for reading,

I've goodled but cannot find anything related to my issue. It would seem easy to configured without code.

I have 3 Option buttons labled: button 1 - add, button 2 - modify, and button 3 - delete in my web based InfoPath form.

When someone wants to modify a request, they click on button 2, and a new field (possibly "option section"?) opens. They then write into field what is needed. Same would happen to the "Delete" field.

Using InfoPath 2010 with SharePoint 2010.

Any help would be appreciated.