To organize your references is it advised to create groups, this way you can sort your references into different categories.
You can also use groups to share your references with others.
In the top menu bar, click on: Organize > Manage My Groups
Click on New Group
A pop-up screen appears. Type a name for your group:
Click OK.
If you want to share this group, click on the tab Sharing an EndNote library to see how.
Select references one by one, or select All or Page.
You can use the drop down menu Show X per page to select how many references are displayed on the page (10, 25 or 50)
When your selection is complete, click on the Add to group option and select the group you want to add the references to:
Check the box in front of the reference you want to delete and click Remove from Group.
Click on OK:
The reference has now been removed from the group, but not from the library.