We started using a plugin called 'Discussions' which organises comments under a page (called a discussion) and give us some nice metrics.
The problem is that we already had one page elsewhere in the space (not a Discussion) with relevant comments underneath.
If I move that page to the Discussions tree, its database doesn't know it's a discussion (as it was not created using the Discussions Blueprint) and it does not pop up in the discussion dashboard
If I start another Discussion and move the comments by copy and paste, I will lose who the comment came from unless we ask everyone to do that individually.
So I either find a solution to move 'comments only' from one page to another, or find a way to edit Discussion's database