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

We will all be pushing up daisies before 1Password/Agile fixes this issue.
It's not the fault of the support team members -- the CEO, @"Jeff Shiner" and @DavidT are uninterested/unwilling.

Inability to bulk-remove duplicates (which support will insist are near-duplicates, but are exact duplicates from the user's point of view) has been a fatal issue since 1Password moved from stand-alone to subscription. All of us who were early adopters were screwed. A blot on the company, the founders, and the subscription model. I've given up hope. For now I've gone back to 1Password7, which is somewhat better than the dumbed-down 8. But I'm looking for an off-ramp for myself, my family and my customers. DuckDuckGo, which is free, has recently added password management, and it imports 1Password files. I'm considering that, once I understand how it works better.
1P_Ben https://1password.com/company/