Identifying and Merging Duplicates in Zotero

[@stephanfrederic7535]

How do i do that for 1000 of duplicates after merging two bibliographies?

[@MrDinivini]

The most important question is Zotero smart enough to resolve the merging in the document that references both versions?

[@MSCGERECO]

I cann't find this option in Microsoft Windows 10