There's a few ways to complete this objective:

1. The first option would be to use a scale response. In the first selection simply add the text label <specify>. This tells the software to allow an input box to open up if the item is selected. The second selection would be a 'cheat' button. If the user selects this button, you would simply skip to a screen in which the question is asked, and the answer is given. Rather than using an input box to answer the question, you may want to use a 'fill-in-the-blank' item type for questions in which the user has cheated.

2. The second option would be to use a 'custom item' item type. This would allow for complete control on how to display the item in question. For more information on custom items, see the following link:
http://www.empirisoft.com/medialab/h...stom_items.htm