Tool for detecting and removing duplicates? [Available in 8.10.18]

Ability to sort or group by password would help with simple duplicate detection, since duplicate entries have duplicate passwords, so it would put duplicates next to each other, where I would be able to decide which entry is kept and which can be dropped. Sort by title is meaningless, because different (but duplicate) sources have different definition of what is a title (for some it's the url, for some it's the website, for some it's free text).

Sort or group by (first listed) url could also help with duplicate detection, since most entries will have only one url, but there is no possibility to sort by url.

In v7, searching for duplicates was a chore. In v8 it seems you can use the Watchtower/reused passwords view to group entries with identical passwords, but since I have cleaned up my database before using v8, I cannot say how this actually will work out.