You will not find a tutorial in this small post, sorry. Because I have been writing multiple blog posts and articles about using Widgets, coming with Captivate or available for free, for question slides, I thought it to be useful to post a link to a list with those resources. Similar to the list about Advanced Actions, I published this one on acrobat.com and will keep it updated whenever I do publish something about this subject.
Please, check this link. I repeated the warning posted in one of those articles: NEVER DUPLICATE A WIDGET, if it has an associated variable that you want to use in an advanced action.