With basic groups, you manually drag and drop any existing references into your group. The references are still kept in "All References" folder; basic groups only contain copies of them. To create a basic group:
To add references to your newly created group:
With smart groups, EndNote will automatically place into the smart group any future or existing references that contain your search criteria within any field within the reference, e.g. title, author, abstract, keywords, etc. To create a smart group:
To find duplicate references:
If you have duplicate references in your library, the Find Duplicates dialog box will appear. For each set of duplicates, you have the following options:
To remove all the duplicate references in the Duplicate References Group In the left side menu pane: