Top answer and chronological answers in Q&A Plugin

Hello,

I have a big problem with the plugin Q&A. Sometimes the answers of the topic don't make sense because there are classified by votes.

It should have a TOP answer and the other answer must be classified by chronological.

This website is a good example yo illustrated what I want : http://www.tomsguide.fr/solutions/id-515145/enregistrer-video-webcam.html (the best answer is green)

Do you see what I mean ?
Thank you in advance.