As an administrator in a Space using Questions for Confluence, I'd like to mark answers as "accepted" even if I didn't post the original question. In looking at the Questions documentation, it seems that this should be possible, but I'm not seeing the functionality for it.
Documentation:
Answer a question
Any user that can ask a question can answer a question. You can @mention other users or share the question to bring others into the discussion. Up vote helpful answers, and down vote unhelpful or incorrect answers.
Accept the best answer to indicate to other people that your question has been answered. The accepted answer and highly voted answers appear above lower voted answers.
You can only accept answers to your own questions (unless you're an administrator).