Hi did a very quick search and didn't see this covered. I'd like to be able to see that I've already added an item to Zotero. Can the Zotero cue in the location box change colour or somehow be different (include a check mark for example) when I've already added something to my database?

This would save time and prevent duplication in the database. I suppose another method would be to have a check for the item with a message like, 'This item already in your library. Do you want to add it again?'

Thanks for considering this request.
Freely,
Moth