I would also say, allow for merging. When merging, any fields that overlap, create a field that says "{field name} {number of added duplicate}"

I migrates from multiple places, and each source was added to a unique vault, however it is quite annoying managing duplicates between these vaults as all of them have the same import date, so its tricky to know which one is the correct one, and no easy way to merge all 3 in one

Also, ability to select multiple entries and drag and drop ability to move entries between vaults, analogous to say, Outlook's Email management.

When importing from BitWarden and let’s say Apple, you will get a lot of double login credentials. It would be nice for them automatically/ optionally be fused together. Or get the question to fuse them together or any other questions that would be necessary to get the right login data.

Maybe create a status for every double import that’s tells you if it has been checked by you or not?

- Possibility to merge 2 vaults

During passwords importation, I had multiple vaults created. I would like to merge them all.

- Possibility to detect and to merge duplicates.

Sometimes changing the password creates a duplicate. Cool be useful to be able to detect and merge duplicates.

I have Firefox, Chrome, and now Proton all managing login information. While I may eventually move to Proton Pass exclusively for the moment I cannot afford to do so. I have therefore had to import logins from my other login managers and I have noticed that they don't seem to merge as well, or at all perhaps, as I would like them to. Even with only one login manager I would prefer that logins for a given domain that are for the same user or profile be mergeable at my discretion. I am not really in favor of such a feature being automatic unless the automatic setting can be toggled to manual. I would prefer that I be able to have duplicate logins merged and obsolete logins overridden by current ones in some way so that data loss is minimized or non-existent.