It would be really helpful if the Merge feature worked with records in the cart and not just records in lists. That way it would be possible to merge records quickly without needing to create a list every time.
I agree that this would be a helpful feature. It's still not available in current versions of Koha. Merging records can only be done from lists.
We now have the option to merge items from the cataloguing search as well. I am in doubt if we really need a 3rd option. Marking WONTFIX, please reopen if you disagree!