Leave green question open for additional answers

Question

In our Q2A site, all the green quesitions (i.e., where best answer has been selected) are close — one cannot add another answer to them. I don't want this.

On this very site (question2answer.org/qa/), all the green excepted answers are open for additional / further answers.

Where can I find the setting that leaves green answers open as described above?

(PS: we are running 'Snow Theme'. )

Answer 1

Go to Admin panel > Posting > Close questions with a selected answer

You must have enabled "Close questions with a selected answer", uncheck it there and then people will be able to answer even after the best answer is selected.