Smart Groups are groups that are automatically populated by EndNote based on your pre-determined criteria. You can set your own criteria for how references are sorted into Smart Groups, such as by date, author, keyword, and more. 

To create a Smart Group:

1. Click on the Groups menu.
2. Select Create Smart Group.
3. A dialog box will appear.
4. Enter a name for the Group
5. Use the dropdowns in the dialogue box to enter your criteria, then click Create. 

The new Smart Group will be added to your Groups panel.