Zotero

• Searching your library.

• Collections/Folders.

• Deleting references.

To search your library, use the search box at the top right of the screen, next to your name. You can search by Title, Creator Year and Full-Text content.

You can organise references by putting them into collections (this is how Zotero calls folders). You can build multiple layers of collections in a hierarchical structure.

• To create a new collection, click on the + (Add) button to the right of My Library, in the left panel. You will see a new blank box, at the end of  the list of your collections, just type in a name for the new collection.
• To delete, re-name, or add a sub-collection, click on the three dots to the right of a folder name.
• You can drag and drop references from your library into a collection, or select references and use the Folder + icon (Add to Collection) option at the top of the central pane.

• To remove a reference from a collection, use either the Folder - (Remove from Collection) or the Trash can icons option at the top of the central pane. If you remove a reference from a collection the reference can still be found in My Library.
• Use the same steps to delete reference(s) from My Library use either the Folder - (Remove from Collection) or the Trash can icons.

References will remain in Trash until you delete them permanently. To delete references permanently:

• Go to the Trash folder and select reference(s) then click on the Trash can icon at the top of the central panel. You can also use the Delete key on your keyboard.
• To restore references in Trash to your Library, select the reference(s) you want to restore, then click on the Page icon at the top of the central panel.