How to hide/display different section of the form in the Form Archive?

In order to do this, you need to override the WorkflowPage ChangeFormArchiveLayout() method. If you want even more flexibility on the form archive creation, you can override the GetFormArchive() method. This method has to return a string containing the HTML of the form archive.

For more information, see Form archive management in the WorkflowGen Web Forms for Visual Studio Developer Guide.